GM Duramax L5P Cat & DPF Delete Pipe (2017-2025)
Type: exhaust-component
Unlock airflow and performance in your 6.6L Duramax
This 4-inch stainless steel delete pipe replaces the factory catalytic converter and diesel particulate filter. Designed for off-road and competition use, it improves exhaust flow, reduces restriction, and supports performance tuning.
The GM Duramax L5P Cat & DPF Delete Pipe is a precision-engineered upgrade for 2017–2025 Chevy and GMC 2500/3500 HD trucks equipped with the 6.6L Duramax diesel. Featuring a straight-pipe design and OE-style hangers, this pipe enhances exhaust efficiency while ensuring straightforward installation.
Vehicle Fitment
Compatible Vehicles
- 2017–2025 Chevrolet Silverado 2500HD / 3500HD 6.6L Duramax (OEM 4-bolt flange)
- 2017–2025 GMC Sierra 2500HD / 3500HD 6.6L Duramax (OEM 4-bolt flange)
Not Compatible With
- 3500/4500/5500 Cab & Chassis models
- Any model without OEM turbo direct pipe
Specifications
| Specification | Detail |
|---|---|
| Pipe Diameter | 4 inches |
| Material | High-grade stainless steel |
| Design | Straight pipe with OE-style hangers |
| Tuning Requirement | Yes – Race tuning software required |
What’s Included
- 4" stainless steel delete pipe
- OE-style hangers
- 4-bolt flange
- Installation hardware (if applicable)
Key Features
- Replaces restrictive factory catalytic converter and DPF
- Maximizes exhaust flow for improved engine performance
- Durable stainless steel resists corrosion and high heat
- OE-style hangers simplify installation and ensure fit
- Supports off-road tuning and modifications
Important Notes:
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TARIFF NOTICE:
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
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Return Policies
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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.
