GM Duramax

{ "variantCount": 4, "variants": [{ "id": "43268996399197", "title": "4\" Downpipe-Back \/ 409 Stainless Steel", "fitmentClass": "", "applicationCount": 12, "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." } ] }, { "id": "43268996431965", "title": "5\" Downpipe-Back \/ 409 Stainless Steel", "fitmentClass": "", "applicationCount": 12, "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." } ] }, { "id": "67701775466589", "title": "4\" Downpipe-Back \/ 304 Stainless Steel", "fitmentClass": "", "applicationCount": 12, "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." } ] }, { "id": "67701775499357", "title": "5\" Downpipe-Back \/ 304 Stainless Steel", "fitmentClass": "", "applicationCount": 12, "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." }, { "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. Check wheelbase, bed length and spare-tire clearance." } ] } ] }

{ "variantCount": 4, "variants": [{ "id": "43268982472797", "title": "4-Inch \/ 304 Stainless Steel", "fitmentClass": "universal", "applicationCount": 0, "applications": [] }, { "id": "43268982505565", "title": "4-Inch \/ 409 Stainless Steel", "fitmentClass": "universal", "applicationCount": 0, "applications": [] }, { "id": "43268982538333", "title": "5-inch \/ 304 Stainless Steel", "fitmentClass": "universal", "applicationCount": 0, "applications": [] }, { "id": "43268982571101", "title": "5-inch \/ 409 Stainless Steel", "fitmentClass": "universal", "applicationCount": 0, "applications": [] } ] }

{ "variantCount": 1, "variants": [{ "id": "43268979589213", "title": "Default Title", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "Late-2006 to early-2007 LBZ only. Confirm production date and engine code; LMM excluded." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "Late-2006 to early-2007 LBZ only. Confirm production date and engine code; LMM excluded." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "Late-2006 to early-2007 LBZ only. Confirm production date and engine code; LMM excluded." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "Late-2006 to early-2007 LBZ only. Confirm production date and engine code; LMM excluded." } ] } ] }

{ "variantCount": 4, "variants": [{ "id": "43268979687517", "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": "43268979720285", "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": "43268979753053", "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": "43268979785821", "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." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "43268979556445", "title": "Default Title", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "LM2 only; retains the original muffler." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "LM2 only; retains the original muffler." } ] } ] }

{ "variantCount": 12, "variants": [{ "id": "44214964191325", "title": "2017-2018 \/ Delete Pipe", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "44214964224093", "title": "2017-2018 \/ 4-inch Downpipe-Back Exhaust", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "44214964256861", "title": "2017-2018 \/ 5-inch Downpipe-Back Exhaust", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "44214964289629", "title": "2020 - 2023 \/ Delete Pipe", "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": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "44214964322397", "title": "2020 - 2023 \/ 4-inch Downpipe-Back Exhaust", "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": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "44214964355165", "title": "2020 - 2023 \/ 5-inch Downpipe-Back Exhaust", "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": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "43788131434589", "title": "2024-2025 \/ Delete Pipe", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "43788131467357", "title": "2024-2025 \/ 4-inch Downpipe-Back Exhaust", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "43788131500125", "title": "2024-2025 \/ 5-inch Downpipe-Back Exhaust", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "67701783822429", "title": "2019 \/ Delete Pipe", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "67701783855197", "title": "2019 \/ 4-inch Downpipe-Back Exhaust", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] }, { "id": "67701783887965", "title": "2019 \/ 5-inch Downpipe-Back Exhaust", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup only. 2024+ E42 ECM requires a separate HP Tuners unlock service. Select the exact year and ECM package; tune before hardware removal." } ] } ] }

{ "variantCount": 2, "variants": [{ "id": "43757478248541", "title": "4-inch Downpipe-Back", "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": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." } ] }, { "id": "43757478281309", "title": "5-inch Downpipe-Back", "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": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": "Extra Cab or Crew Cab HD pickup, short or long box. Cab \u0026 Chassis and three-bolt-flange systems excluded." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "43268995448925", "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","2025","2026"], "body": "Pickup", "notes": "HD pickup, four-bolt turbo flange. 2020+ trucks may need minor hanger adjustment; custom tuning required." }, { "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, four-bolt turbo flange. 2020+ trucks may need minor hanger adjustment; custom tuning required." }, { "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, four-bolt turbo flange. 2020+ trucks may need minor hanger adjustment; custom tuning required." }, { "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, four-bolt turbo flange. 2020+ trucks may need minor hanger adjustment; custom tuning required." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "43549850959965", "title": "Stainless steel", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "LBZ engine only. Fits late 2006 to early 2007. Excludes LMM engines and Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "LBZ engine only. Fits late 2006 to early 2007. Excludes LMM engines and Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "LBZ engine only. Fits late 2006 to early 2007. Excludes LMM engines and Cab \u0026 Chassis." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LBZ", "years": ["2006","2007"], "body": "Pickup", "notes": "LBZ engine only. Fits late 2006 to early 2007. Excludes LMM engines and Cab \u0026 Chassis." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "43268985127005", "title": "Default Title", "fitmentClass": "", "applicationCount": 2, "applications": [{ "verified": true, "make": "GM", "model": "Colorado", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016","2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Pipe length may need adjustment for the cab and box configuration." }, { "verified": true, "make": "GM", "model": "Canyon", "engine": "2.8L", "type": "Duramax LWN", "years": ["2016","2017","2018","2019","2020","2021","2022"], "body": "Pickup", "notes": "Pipe length may need adjustment for the cab and box configuration." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "43268975362141", "title": "Default Title", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "Custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LM2", "years": ["2020","2021","2022"], "body": "Pickup", "notes": "Custom tuning required." }, { "verified": true, "make": "GM", "model": "Silverado 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "Custom tuning required." }, { "verified": true, "make": "GM", "model": "Sierra 1500", "engine": "3.0L", "type": "Duramax LZ0", "years": ["2023","2024","2025"], "body": "Pickup", "notes": "Custom tuning required." } ] } ] }

{ "variantCount": 9, "variants": [{ "id": "67600070115421", "title": "Ford 6.4L Powerstroke | 2008–2010", "fitmentClass": "vehicle_specific", "applicationCount": 2, "applications": [{ "verified": true, "make": "Ford", "model": "F250", "engine": "6.4L", "type": "Powerstroke", "years": ["2008","2009","2010"], "body": "Pickup", "notes": null }, { "verified": true, "make": "Ford", "model": "F350", "engine": "6.4L", "type": "Powerstroke", "years": ["2008","2009","2010"], "body": "Pickup", "notes": null } ] }, { "id": "67600072769629", "title": "Ford 6.7L Powerstroke | 2011–2016 | Pickup trucks only", "fitmentClass": "vehicle_specific", "applicationCount": 2, "applications": [{ "verified": true, "make": "Ford", "model": "F250", "engine": "6.7L", "type": "Powerstroke", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "Pickup only; Cab \u0026 Chassis excluded. Some PCM versions do not support switching power levels while driving." }, { "verified": true, "make": "Ford", "model": "F350", "engine": "6.7L", "type": "Powerstroke", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "Pickup only; Cab \u0026 Chassis excluded. Some PCM versions do not support switching power levels while driving." } ] }, { "id": "67600073424989", "title": "Ford 6.7L Powerstroke | 2017–2019 | Pickup trucks only", "fitmentClass": "vehicle_specific", "applicationCount": 2, "applications": [{ "verified": true, "make": "Ford", "model": "F250", "engine": "6.7L", "type": "Powerstroke", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Pickup only; Cab \u0026 Chassis excluded. Some PCM versions do not support switching power levels while driving." }, { "verified": true, "make": "Ford", "model": "F350", "engine": "6.7L", "type": "Powerstroke", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "Pickup only; Cab \u0026 Chassis excluded. Some PCM versions do not support switching power levels while driving." } ] }, { "id": "67600074637405", "title": "Chevrolet\/GMC 6.6L Duramax LMM | 2007.5–2010", "fitmentClass": "vehicle_specific", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": null }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": null }, { "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": null }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LMM", "years": ["2007.5","2008","2009","2010"], "body": "Pickup", "notes": null } ] }, { "id": "67600074834013", "title": "Chevrolet\/GMC 6.6L Duramax LML | 2011–2016", "fitmentClass": "vehicle_specific", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "Single fuel tank only. Boost display, tire-size adjustment and speed-limiter adjustment are not supported." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "Single fuel tank only. Boost display, tire-size adjustment and speed-limiter adjustment are not supported." }, { "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "Single fuel tank only. Boost display, tire-size adjustment and speed-limiter adjustment are not supported." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax LML", "years": ["2011","2012","2013","2014","2015","2016"], "body": "Pickup", "notes": "Single fuel tank only. Boost display, tire-size adjustment and speed-limiter adjustment are not supported." } ] }, { "id": "67600075456605", "title": "Dodge\/RAM 6.7L Cummins | 2007.5–2009", "fitmentClass": "vehicle_specific", "applicationCount": 2, "applications": [{ "verified": true, "make": "Ram", "model": "2500", "engine": "6.7L", "type": "Cummins", "years": ["2007.5","2008","2009"], "body": "Pickup", "notes": null }, { "verified": true, "make": "Ram", "model": "3500", "engine": "6.7L", "type": "Cummins", "years": ["2007.5","2008","2009"], "body": "Pickup", "notes": null } ] }, { "id": "67600076079197", "title": "RAM 6.7L Cummins | 2010–2012 | Pickup trucks only", "fitmentClass": "vehicle_specific", "applicationCount": 2, "applications": [{ "verified": true, "make": "Ram", "model": "2500", "engine": "6.7L", "type": "Cummins", "years": ["2010","2011","2012"], "body": "Pickup", "notes": "Pickup only; Cab \u0026 Chassis excluded." }, { "verified": true, "make": "Ram", "model": "3500", "engine": "6.7L", "type": "Cummins", "years": ["2010","2011","2012"], "body": "Pickup", "notes": "Pickup only; Cab \u0026 Chassis excluded." } ] }, { "id": "67600076537949", "title": "RAM 6.7L Cummins | 2013–2017", "fitmentClass": "", "applicationCount": 0, "applications": [] }, { "id": "43268995514461", "title": "RAM 6.7L Cummins | 2018–2021", "fitmentClass": "", "applicationCount": 0, "applications": [] } ] }

{ "variantCount": 8, "variants": [{ "id": "67699219562589", "title": "2017-2018 \/ Yes add TCM Transmission Tuning + Credits", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] }, { "id": "67699219595357", "title": "2017-2018 \/ No do not add TCM Transmission Tuning", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] }, { "id": "67699219628125", "title": "2019 \/ Yes add TCM Transmission Tuning + Credits", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] }, { "id": "67699219660893", "title": "2019 \/ No do not add TCM Transmission Tuning", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2019"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] }, { "id": "67699219693661", "title": "2020 - 2023 \/ Yes add TCM Transmission Tuning + Credits", "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": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] }, { "id": "67699219726429", "title": "2020 - 2023 \/ No do not add TCM Transmission Tuning", "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": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2020","2021","2022","2023"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] }, { "id": "67699219759197", "title": "2024-2026 \/ Yes add TCM Transmission Tuning + Credits", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] }, { "id": "67699219791965", "title": "2024-2026 \/ No do not add TCM Transmission Tuning", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2024","2025","2026"], "body": "Pickup", "notes": "HD pickup. Match the year and ECM package; 2024+ E42 unlock service is separate. TCM tuning is included only when selected." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "67699218612317", "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": "Aftermarket turbo and custom charge piping only; requires fabrication. Factory turbo and OEM intercooler piping excluded." }, { "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": "Aftermarket turbo and custom charge piping only; requires fabrication. Factory turbo and OEM intercooler piping excluded." }, { "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": "Aftermarket turbo and custom charge piping only; requires fabrication. Factory turbo and OEM intercooler piping excluded." }, { "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": "Aftermarket turbo and custom charge piping only; requires fabrication. Factory turbo and OEM intercooler piping excluded." } ] } ] }

{ "variantCount": 6, "variants": [{ "id": "67699217596509", "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","2026"], "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","2026"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "67699217629277", "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","2026"], "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","2026"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "67699217662045", "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","2026"], "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","2026"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "67699217694813", "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","2026"], "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","2026"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "67699217727581", "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","2026"], "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","2026"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] }, { "id": "67699217760349", "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","2026"], "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","2026"], "body": "Pickup", "notes": "LZ0 engine only; LM2 excluded. ECM unlock required before tuning." } ] } ] }

{ "variantCount": 6, "variants": [{ "id": "67699217399901", "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": "67699217432669", "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": "67699217465437", "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": "67699217498205", "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": "67699217530973", "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." } ] }, { "id": "67699217563741", "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." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "67699216515165", "title": "Default Title", "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." } ] } ] }

{ "variantCount": 1, "variants": [{ "id": "67699217006685", "title": "Default Title", "fitmentClass": "", "applicationCount": 4, "applications": [{ "verified": true, "make": "GM", "model": "Silverado 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "2017-2019 L5P HD pickup application." }, { "verified": true, "make": "GM", "model": "Silverado 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "2017-2019 L5P HD pickup application." }, { "verified": true, "make": "GM", "model": "Sierra 2500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "2017-2019 L5P HD pickup application." }, { "verified": true, "make": "GM", "model": "Sierra 3500", "engine": "6.6L", "type": "Duramax L5P", "years": ["2017","2018","2019"], "body": "Pickup", "notes": "2017-2019 L5P HD pickup application." } ] } ] }