Off-Road Use Only!
GM Duramax L5P All-In-One DPF/DEF/EGR Delete Kit (2017-2025)
Type: All-In-One Kit
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Regular price
$3,197.69
Introduction
The GM Duramax L5P - All-In-One DPF/DEF/EGR Delete Kit (2017-2025) combines tuner-ready hardware, year-specific EGR/cooler delete parts, and your choice of race exhaust for a full off-road solution. Tune the truck first, then remove emissions components. The Unlock Tool Upgrade removes the need for complete ECM swaps and keeps setup simple.
2024 to 2025 ECM’ s must be sent to HP tuners to be unlocked before it can be tuned (NOT INCLUDED)*
Features
- Pre-tune requirement: Always flash the calibration before removing hardware
- Unlock Tool Upgrade: No ECM replacement, immobilizer, or crank relearn
- OBD2 Flash Delete Tuning Interface:
- 6 credits for 2017-2023
- 8 credits for 2024-2025
- 5-Level SOTF tuning package (2017-2023 only): 0HP / 50HP / 75HP / 100HP / 150HP Switch On The Fly
- Complete Duramax EGR delete kit and CAN BUS plug kit (2017-2023 only)
- 2024-2025 variant is a single calibration tune (no SOTF)
- Exhaust options: Straight L5P DPF delete pipe, 4" downpipe-back exhaust, or 5" downpipe-back exhaust.
Benefits
- Power & torque: Optimized fueling + free-flowing exhaust = instant gains
- Lower EGTs: Less restriction keeps temps safer under load
- Drivability: Smooth shifts and stronger mid-range with custom tunes
- Reliability: Deletes failure-prone emissions parts, reducing derates
- Simplicity: Unlock Tool Upgrade avoids ECM swaps and relearn steps
What’s Included in the All-in-One Delete Kit
- Unlock Tool Upgrade — 2017-2019 Kit only (2020 -2023 Unlock cable not req'd)
- OBD2 Flash Delete Tuning Interface with 6 credits (2017-2023) or 8 credits (2024-2025)
- 5-Level SOTF Tune Package (2017-2023 Pickup only) — 0 HP, 50 HP, 75 HP, 100 HP, 150 HP - Single Calibration Tune (2024-2025 only, no SOTF)
- Duramax EGR delete kit
- CAN BUS plug kit (2017-2023 only)
- 24-25 CAN bus plugs not yet available — Can Bus Systems - NOx & DEF must remain plugged or tied in place. Functionality is unaffected
- Your choice of exhaust: 4″ downpipe-back, 5″ downpipe-back, or straight L5P DPF delete pipe
Vehicle Compatibility
- Platforms: 2017-2025 GMC Sierra / Chevy Silverado 2500-3500 L5P Duramax
-
Year / ECM notes:
- 2017-2019: E41 ECM (Unlock Tool compatible)
- 2020-2023: E41 ECM (Unlock Tool supported with updated process)
- 2024-2025: E42 ECM — requires E42 service (not included in kit)
- Select your year set during configuration: 2017-2019, 2020-2023, or 2024-2025
| Duramax L5P Delete Kit | Model Year | Platform |
|---|---|---|
| 2025 Duramax L5P Delete Kit | 2025 | E92 ECM (E42 service required) |
| 2024 Duramax L5P Delete Kit | 2024 | E92 ECM (E42 service required) |
| 2023 Duramax L5P Delete Kit | 2023 | E86 ECM |
| 2022 Duramax L5P Delete Kit | 2022 | E86 ECM |
| 2021 L5P Delete Kit | 2021 | E86 ECM |
| 2020 Duramax Delete Kit | 2020 | E86 ECM |
| 2019 L5P Delete Kit | 2019 | E41 ECM |
| 2018 L5P Delete Kit | 2018 | E41 ECM |
| 2017 L5P Delete Kit | 2017 | E41 ECM |
Technical Specifications
Kit contents (core package)
- Unlock Tool Upgrade for 2017-2023 years
- OBD2 Flash Delete Tuning Interface (+6 credits for 2017-2023, +8 credits for 2024-2025)
- 5-Level SOTF package (2017-2023 only)
- Single calibration tune (2024-2025 only)
- CAN BUS plug kit (2017-2023 only)
- Choice of exhaust: straight DPF delete pipe, 4" DP-back, or 5" DP-back
- Included EGR & cooler delete kit (L5P)
- 3 × Coolant hoses with pre-installed fittings
- 1 × Aluminum block-off plate
- 2 × Steel block-off plates
- 4 × Grade 8.8 bolts
- 1 × Vacuum cap
- 2 × Hose clamps
- 3 × Exhaust gaskets
- 3 × Turbo gaskets
- 1 × Aluminum 9th-injector block-off plug
- 1 × Aluminum coolant-hose block-off plug
Important: 2024-2025 models require E42 service, which is not included in this kit.
Power gain range: varies by tune and supporting mods
Operating range: designed for race use; lower EGTs when properly calibrated
Customization Steps
- Year Selection: 2017-2019, 2020-2023, or 2024-2025 GM Sierra/Silverado 2500/3500 L5P Duramax.
- Exhaust System: Straight delete pipe, 4″ Exhaust, or 5″ Exhaust for maximum flow.
Traditional ECU Swap vs. OBD 2 Tuning Interface
| Feature | Traditional ECU Swap (E41 ECM) | OBD 2 Tuning Interface |
|---|---|---|
| Complex installation process | Yes | No |
| Replace ECM required | Yes | No (for 2017-2023) |
| IMMO / crank relearn required | Yes | No |
| Core charge | No | No |
| Improved combustion temps | ✅ | ✅ |
| Cooling & exhaust longevity | ✅ | ✅ |
| Gains with powerful tune flashes | ✅ | ✅ |
| On-the-fly power level change | ✅ | 2017-2023 only |
| Included SOTF levels | 0 / 50 / 75 / 100 / 150 HP | 2017-2023 only |
Note: 2024-2025 tunes are single calibration only and require separate E42 service. No SOTF options available.
Shipping & Tuning Details
- Lead times depend on year and configuration. 2024-2025 kits may require additional prep due to E42 service requirements.
- Review the installation instructions before beginning.
- Tuning and hardware setup are detailed processes. We appreciate your patience during order preparation.
Optional Add-Ons
-
GM Duramax L5P - TCM Tuning Upgrade Kit (2017-2023): Improve shift strategy and drivability.
Discover the TCM Tuning Upgrade Kit ➤ -
GM Duramax L5P 3.5" Down-Pipe (2017-2023): Helps maximize results by removing the DOC after the turbo.
GM Duramax L5P 3.5" Down-Pipe ➤
Important Notes:
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While we ship with all required USMCA/CUSMA paperwork, U.S. Customs or carriers may still apply duties or fees at delivery. For details, see U.S. Customs & Border Protection
Shipping
We strive to provide fast and reliable shipping options for all our customers. For detailed information about our shipping rates, delivery times, and policies, please visit our Shipping Page.
Return Policies
Your satisfaction is important to us. If you wish to return an item or request a refund, please review the terms and conditions outlined in our Returns Policy.
Important Notices
- Off‑Road Use Only
Products sold by JS Speed are intended for off‑road use and may be illegal on public roads where emissions or pollution‑control laws apply. - Check Local Laws
Before purchasing or installing, verify all applicable local, state/provincial, and federal regulations to ensure the modification is legal in your area. - Professional Installation Recommended
These parts should be installed by qualified professional mechanics. Improper installation can cause performance issues or vehicle damage. Unless a product page explicitly states otherwise, installation instructions are not included. Components are designed for users with solid mechanical knowledge, and minor adjustments or modifications may be required for proper fitment. Returns or refunds cannot be accepted due to difficulty completing an installation or the absence of instructions. - Warranty Impact
Use of these parts may void your vehicle’s factory warranty. Confirm with your vehicle manufacturer before purchase and installation. - Limitation of Liability
JS Speed is not responsible for damage, failures, or issues arising from the use or installation of these products. - Product Images
Images are for illustration only and may differ from the actual product due to manufacturer updates or improvements. - No Performance Guarantees
While these products are designed to enhance performance, JS Speed does not guarantee specific performance results.
GM Duramax L5P All-In-One DPF/DEF/EGR Delete Kit (2017-2025)
Regular price
$3,197.69