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Mini Maxx|5 in stockRegular price $219.99Unit price / per
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{ "variantCount": 6, "variants": [{ "id": "44214428139613", "title": "Stock Optimized (+0HP) \/ Yes", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "44214428172381", "title": "Stock Optimized (+0HP) \/ No", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "44214428205149", "title": "Tow (+20HP) \/ Yes", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "44214428237917", "title": "Tow (+20HP) \/ No", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "44214428270685", "title": "Street (+40HP) \/ Yes", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "44214428303453", "title": "Street (+40HP) \/ No", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] } ] }JS Speed Tunes|30 in stockRegular price $1,499.99Unit price / per -
{ "variantCount": 24, "variants": [{ "id": "44213561917533", "title": "GM Duramax LML Pickup (2011-2014) \/ Yes add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "44213561950301", "title": "GM Duramax LML Pickup (2011-2014) \/ No do not add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "44213561983069", "title": "GM Duramax LML Cab \u0026 Chassis (2011-2014) \/ Yes add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 1, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Cab \u0026 Chassis", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "44213562015837", "title": "GM Duramax LML Cab \u0026 Chassis (2011-2014) \/ No do not add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 1, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Cab \u0026 Chassis", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "44213562048605", "title": "GM Duramax LML Pickup (2015-2016) \/ Yes add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "44213562081373", "title": "GM Duramax LML Pickup (2015-2016) \/ No do not add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "44213562114141", "title": "GM Duramax L5P Pickup (2017-2019) \/ Yes add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." } ] }, { "id": "44213562146909", "title": "GM Duramax L5P Pickup (2017-2019) \/ No do not add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." } ] }, { "id": "44213562179677", "title": "GM Duramax L5P Pickup (2020-2021) \/ Yes add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." } ] }, { "id": "44213562212445", "title": "GM Duramax L5P Pickup (2020-2021) \/ No do not add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." } ] }, { "id": "44213562245213", "title": "GM Duramax L5P Pickup (2022-2023) \/ Yes add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." } ] }, { "id": "44213562277981", "title": "GM Duramax L5P Pickup (2022-2023) \/ No do not add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2022","2023"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. 2017-2018 E41 ECM requires unlock before tuning." } ] }, { "id": "67701804728413", "title": "GM Duramax LML Pickup (2011-2014) \/ Yes add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "67701804761181", "title": "GM Duramax LML Pickup (2011-2014) \/ No do not add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "67701804793949", "title": "GM Duramax LML Cab \u0026 Chassis (2015-2016) \/ Yes add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 0, "applications": [] }, { "id": "67701804826717", "title": "GM Duramax LML Cab \u0026 Chassis (2015-2016) \/ Yes add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 0, "applications": [] }, { "id": "67701804859485", "title": "GM Duramax LML Cab \u0026 Chassis (2015-2016) \/ No do not add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 0, "applications": [] }, { "id": "67701804892253", "title": "GM Duramax LML Cab \u0026 Chassis (2015-2016) \/ No do not add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 0, "applications": [] }, { "id": "67701804925021", "title": "GM Duramax LML Pickup (2015-2016) \/ Yes add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "67701804957789", "title": "GM Duramax LML Pickup (2015-2016) \/ No do not add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015","2016"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "67701804990557", "title": "GM Duramax LML Cab \u0026 Chassis (2011-2014) \/ No do not add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 1, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Cab \u0026 Chassis", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "67701805023325", "title": "GM Duramax LML Cab \u0026 Chassis (2011-2014) \/ Yes add an EZ Lynk device \/ SOTF Calibration", "fitmentClass": "", "applicationCount": 1, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Cab \u0026 Chassis", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required." } ] }, { "id": "67703723884637", "title": "LM2 Pickup (2020-2022) \/ No do not add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. E46 ECM only; E66 and Global B excluded." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. E46 ECM only; E66 and Global B excluded." } ] }, { "id": "67703723917405", "title": "LM2 Pickup (2020-2022) \/ Yes add an EZ Lynk device \/ Single Calibration", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. E46 ECM only; E66 and Global B excluded." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "PTO-equipped trucks excluded. Compatible EZ LYNK device required. E46 ECM only; E66 and Global B excluded." } ] } ] }EZ Lynk|120 in stockRegular price $1,287.99Unit price / per -
JS Speed Diesel|9 in stockRegular price $2,100.00Unit price / per
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Off-Road Use Only!{ "variantCount": 2, "variants": [{ "id": "43678321213533", "title": "409 Stainless Steel", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." } ] }, { "id": "67701770092637", "title": "304 Stainless Steel", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Requires the original four-bolt-flange turbo direct pipe." } ] } ] }JS Speed Diesel|10 in stockRegular price $349.00Unit price / per -
Off-Road Use Only!{ "variantCount": 2, "variants": [{ "id": "43678320984157", "title": "2017-2019", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." } ] }, { "id": "43678321016925", "title": "2020-2025", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." } ] } ] }SaleJS Speed Diesel|10 in stockRegular price $299.00Unit price / per$440.00Sale price $299.00 Regular price -
Off-Road Use Only!{ "variantCount": 4, "variants": [{ "id": "44214969565277", "title": "2017 - 2019 \/ 4-inch Downpipe-Back \/ No Muffler", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." } ] }, { "id": "44214969630813", "title": "2017 - 2019 \/ 5-inch Downpipe-Back \/ No Muffler", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." } ] }, { "id": "43678320853085", "title": "2020 - 2025 \/ 4-inch Downpipe-Back \/ No Muffler", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." } ] }, { "id": "43678320918621", "title": "2020 - 2025 \/ 5-inch Downpipe-Back \/ No Muffler", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025"], "body": "Pickup", "notes": "HD pickup; excludes Cab \u0026 Chassis." } ] } ] }SaleJS Speed Diesel|20 in stockRegular price $515.00Unit price / per$825.00Sale price $515.00 Regular price -
Off-Road Use Only!{ "variantCount": 20, "variants": [{ "id": "44214523166813", "title": "2016 \/ Yes add an OBD2 + credits \/ Single Calibration: Stock Optimized (+0 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523199581", "title": "2016 \/ Yes add an OBD2 + credits \/ Single Calibration: Heavy Towing (+12 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523232349", "title": "2016 \/ Yes add an OBD2 + credits \/ Single Calibration: Light Towing (+24 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523265117", "title": "2016 \/ Yes add an OBD2 + credits \/ Single Calibration: Sport (+36 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523297885", "title": "2016 \/ Yes add an OBD2 + credits \/ Single Calibration: Performance (+40 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317543517", "title": "2016 \/ No do not add an OBD2 \/ Single Calibration: Stock Optimized (+0 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317576285", "title": "2016 \/ No do not add an OBD2 \/ Single Calibration: Heavy Towing (+12 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317609053", "title": "2016 \/ No do not add an OBD2 \/ Single Calibration: Light Towing (+24 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317641821", "title": "2016 \/ No do not add an OBD2 \/ Single Calibration: Sport (+36 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317674589", "title": "2016 \/ No do not add an OBD2 \/ Single Calibration: Performance (+40 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523330653", "title": "2017-2022 \/ Yes add an OBD2 + credits \/ Single Calibration: Stock Optimized (+0 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523363421", "title": "2017-2022 \/ Yes add an OBD2 + credits \/ Single Calibration: Heavy Towing (+12 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523396189", "title": "2017-2022 \/ Yes add an OBD2 + credits \/ Single Calibration: Light Towing (+24 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523428957", "title": "2017-2022 \/ Yes add an OBD2 + credits \/ Single Calibration: Sport (+36 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "44214523461725", "title": "2017-2022 \/ Yes add an OBD2 + credits \/ Single Calibration: Performance (+40 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317871197", "title": "2017-2022 \/ No do not add an OBD2 \/ Single Calibration: Stock Optimized (+0 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317903965", "title": "2017-2022 \/ No do not add an OBD2 \/ Single Calibration: Heavy Towing (+12 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317936733", "title": "2017-2022 \/ No do not add an OBD2 \/ Single Calibration: Light Towing (+24 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678317969501", "title": "2017-2022 \/ No do not add an OBD2 \/ Single Calibration: Sport (+36 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] }, { "id": "43678318002269", "title": "2017-2022 \/ No do not add an OBD2 \/ Single Calibration: Performance (+40 HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Compatible OBD2 interface and tuning credits required; supplied only when selected." } ] } ] }JS Speed Tunes|100 in stockRegular price $1,154.49Unit price / per -
Off-Road Use Only!{ "variantCount": 8, "variants": [{ "id": "43678316986461", "title": "Yes add an OBD2 + credits \/ Stock Optimized (+0HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] }, { "id": "43678317150301", "title": "Yes add an OBD2 + credits \/ All Tune Levels", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] }, { "id": "43678317183069", "title": "No do not add an OBD2 \/ Stock Optimized (+0HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] }, { "id": "43678317346909", "title": "No do not add an OBD2 \/ All Tune Levels", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] }, { "id": "67703721132125", "title": "Yes add an OBD2 + credits \/ Tow (+20HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] }, { "id": "67703721164893", "title": "Yes add an OBD2 + credits \/ Street (+40HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] }, { "id": "67703721197661", "title": "No do not add an OBD2 \/ Tow (+20HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] }, { "id": "67703721230429", "title": "No do not add an OBD2 \/ Street (+40HP)", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "E46 ECM only; E66\/Global B trucks excluded. ECM must be unlocked before tuning." } ] } ] }JS Speed Tunes|40 in stockRegular price $1,713.48Unit price / per -
{ "variantCount": 1, "variants": [{ "id": "43399560495197", "title": "Default Title", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024"], "body": "Pickup", "notes": "Factory turbo and exhaust-manifold connections; OEM-length up-pipes." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024"], "body": "Pickup", "notes": "Factory turbo and exhaust-manifold connections; OEM-length up-pipes." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024"], "body": "Pickup", "notes": "Factory turbo and exhaust-manifold connections; OEM-length up-pipes." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023","2024"], "body": "Pickup", "notes": "Factory turbo and exhaust-manifold connections; OEM-length up-pipes." } ] } ] }JS Speed Diesel|5 in stockRegular price $499.99Unit price / per -
{ "variantCount": 2, "variants": [{ "id": "43268997611613", "title": "304 Stainless Steel", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." } ] }, { "id": "43268997644381", "title": "409 Stainless Steel", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2015.5","2016"], "body": "Pickup", "notes": "HD pickup with three-bolt flange only; excludes Cab \u0026 Chassis." } ] } ] }JS Speed Diesel|10 in stockRegular price $587.60Unit price / per -
{ "variantCount": 2, "variants": [{ "id": "43268996923485", "title": "304 Stainless Steel", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." } ] }, { "id": "43268996956253", "title": "409 Stainless Steel", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Excludes Cab \u0026 Chassis and late-2015 three-bolt-flange vehicles." } ] } ] }JS Speed Diesel|10 in stockRegular price $572.00Unit price / per -
{ "variantCount": 2, "variants": [{ "id": "43268996563037", "title": "2017-2019", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." } ] }, { "id": "43268996595805", "title": "2020-2023", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "L5P HD pickup application. Select the correct generation; custom tuning required." } ] } ] }SaleJS Speed Diesel|568 in stockRegular price $363.00Unit price / per$440.00Sale price $363.00 Regular price -
{ "variantCount": 2, "variants": [{ "id": "43268996333661", "title": "4\" System", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." } ] }, { "id": "43268996366429", "title": "5\" System", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015"], "body": "Pickup", "notes": "HD pickup only. Cab \u0026 Chassis and late-2015 trucks with a three-bolt flange excluded." } ] } ] }SaleJS Speed Diesel|10 in stockRegular price $505.00Unit price / per$786.50Sale price $505.00 Regular price -
{ "variantCount": 1, "variants": [{ "id": "43268995842141", "title": "Default Title", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Custom tuning required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only; Cab \u0026 Chassis excluded. Custom tuning required." } ] } ] }JS Speed Diesel|5 in stockRegular price $209.00Unit price / per -
{ "variantCount": 1, "variants": [{ "id": "43268995416157", "title": "Default Title", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "LML HD pickup application; custom tuning required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "LML HD pickup application; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "LML HD pickup application; custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014"], "body": "Pickup", "notes": "LML HD pickup application; custom tuning required." } ] } ] }JS Speed Diesel|5 in stockRegular price $137.50Unit price / per -
Off-Road Use Only!{ "variantCount": 2, "variants": [{ "id": "44214968549469", "title": "Switch On The Fly (2017-2023)", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019","2020","2021","2022","2023"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." } ] }, { "id": "43788131598429", "title": "Single Calibration (2024-2025)", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "Stock turbo and injectors only. Unlocked ECM, tuning interface and credits required. No hardware supplied." } ] } ] }JS Speed Diesel|10 in stockRegular price $1,299.00Unit price / per -
Off-Road Use Only!{ "variantCount": 2, "variants": [{ "id": "67703317758045", "title": "Tune File + Credits", "fitmentClass": "", "applicationCount": 8, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." } ] }, { "id": "67703317790813", "title": "Tune File Only", "fitmentClass": "", "applicationCount": 8, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Existing T87A transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023","2024","2025","2026"], "body": "Pickup", "notes": "Existing T93 transmission controller. Requires MPVI3\/MPVI4 interface and applicable tuning credits; interface sold separately." } ] } ] }JS Speed Diesel|10 in stockRegular price $538.99Unit price / per -
Off-Road Use Only!{ "variantCount": 1, "variants": [{ "id": "43268981620829", "title": "Default Title", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "LMM pickup only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "LMM pickup only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "LMM pickup only; excludes Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "LMM pickup only; excludes Cab \u0026 Chassis." } ] } ] }JS Speed Diesel|5 in stockRegular price $149.99Unit price / per -
Off-Road Use Only!{ "variantCount": 4, "variants": [{ "id": "43268979818589", "title": "GM Duramax LB7 (2001-2004)", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LB7", "years": ["2001","2002","2003","2004"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LB7", "years": ["2001","2002","2003","2004"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LB7", "years": ["2001","2002","2003","2004"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LB7", "years": ["2001","2002","2003","2004"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." } ] }, { "id": "43268979851357", "title": "GM Duramax LLY (2004.5-2005)", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LLY", "years": ["2004.5","2005"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LLY", "years": ["2004.5","2005"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LLY", "years": ["2004.5","2005"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LLY", "years": ["2004.5","2005"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." } ] }, { "id": "43268979884125", "title": "GM Duramax LBZ\/LMM (2006-2010)", "fitmentClass": "", "applicationCount": 8, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." } ] }, { "id": "43268979916893", "title": "GM Duramax LML (2011-2016)", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "HD pickup only. Confirm engine code at changeover years. Vehicle-specific tune and licensed AutoCal required." } ] } ] }JS Speed Diesel|20 in stockRegular price $357.50Unit price / per
