GM Duramax L5P - EGR & Cooler Delete Kit (2017-2023)
Type: EGR Delete Kit | Fits: GM Duramax
Improve airflow and long-term reliability by eliminating the restrictive factory EGR cooler on your L5P Duramax. This EGR Delete Kit is designed for 2017β2023 GM HD trucks equipped with the 6.6L L5P Duramax engine. By removing the factory EGR cooler system, this upgrade helps promote improved airflow, reduced engine strain, and more consistent performance under heavy loads.
The factory EGR system recirculates exhaust gases back into the intake, which can lead to carbon buildup, reduced airflow, and potential system failures over time. This EGR delete kit removes the restrictive cooler and related components, allowing the engine to operate with cleaner intake air and improved efficiency. Built from durable materials and supplied with all required hardware, this kit offers a reliable solution for off-road and competition builds.
Vehicle Fitment
- 2017β2023 GMC Sierra 2500HD / 3500HD β 6.6L Duramax L5P
- 2017β2023 Chevrolet Silverado 2500HD / 3500HD β 6.6L Duramax L5P
- 2017β2023 GMC Sierra 4500HD / 5500HD β 6.6L Duramax L5P
- 2017β2023 Chevrolet Silverado 4500HD / 5500HD β 6.6L Duramax L5P
Technical Specifications
| Product Type | EGR Cooler Delete Kit |
| Construction | High-strength metal components |
| Included Components | Delete assembly, gaskets, and hardware |
| Installation | Bolt-on replacement |
| Tuning Requirement | Requires emissions-off tuning |
| Application | Off-road / competition use only |
Whatβs Included
- EGR cooler delete kit assembly
- All required gaskets and seals
- Complete installation hardware
Features
- Removes the factory EGR cooler system
- Includes all hardware and gaskets for installation
- Durable construction designed for diesel performance applications
- Designed specifically for 6.6L L5P Duramax engines
- Supports improved airflow through the intake system
Benefits
- Cleaner intake system with reduced soot buildup
- Improved engine reliability by eliminating common EGR failure points
- Supports smoother throttle response and engine efficiency
- Reduces maintenance related to clogged or leaking EGR components
- Helps maintain consistent performance in towing or tuned applications
Installation Notes
- Installation can be completed using standard hand tools.
- Professional installation recommended for best results.
- Custom emissions-off tuning is required after installation to prevent diagnostic codes.
Important Notes:
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Important Notices
- OffβRoad Use Only
Products sold by JS Speed are intended for offβroad use and may be illegal on public roads where emissions or pollutionβcontrol 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 vehicleβs 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.

