GM Duramax L5P - Cat & DPF Delete Pipe (2017-2023)
Type: Race Pipe | Fits: GM Duramax
Unleash your Duramax with a 4” stainless race pipe designed for maximum flow and off-road performance.
The GM Duramax L5P Cat & DPF Delete Pipe is a high-performance exhaust upgrade for 2017–2023 GMC Sierra and Chevy Silverado 2500/3500 pickups. Built from 4” stainless steel, this pipe replaces restrictive factory components—including the catalytic converter and DPF filter—to dramatically improve exhaust flow. With OE-style hangers and a 4-bolt flange, it installs easily and delivers the airflow gains needed for competitive, off-road applications.
Vehicle Fitment
- ✅ 2017–2023 GMC Sierra 2500HD/3500HD Duramax L5P
- ✅ 2017–2023 Chevy Silverado 2500HD/3500HD Duramax L5P
- ❌ Not compatible with 3500/4500/5500 Cab & Chassis models
- ⚠️ Only fits models with OEM-style 4-bolt turbo direct pipe
Specifications
| Feature | Details |
|---|---|
| Product Type | 4” Stainless Cat & DPF Delete Pipe |
| Tubing Size | 4” diameter |
| Material | High-grade stainless steel |
| Flange Style | OEM-style 4-bolt flange |
| Hangers | OE-style hangers for factory-like installation |
| Configuration | Straight pipe, competition use |
| Application | Off-road/competition use only |
| Tuning Requirement | Requires custom race tuning |
What’s Included
- 4” stainless delete pipe
- Pre-installed OE-style hangers
- 4-bolt flange connection
- Installation hardware package
Key Features
- 4” stainless steel construction for durability and corrosion resistance
- Straight-through design for maximum exhaust flow
- OE-style hangers ensure simple, secure installation
- Fits trucks equipped with OEM 4-bolt turbo direct pipe
- Designed specifically for competition and off-road use
Benefits
- Removes catalytic converter and DPF filter for unrestricted flow
- Improves horsepower, torque, and throttle response
- Lowers exhaust gas temperatures (EGTs) under load
- Long-lasting stainless construction withstands extreme heat and stress
- Cleaner, freer exhaust tone with race-style setup
Important Notes:
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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.
