GM Duramax 6.6L Cat & DPF Delete Pipe (2015.5-2016)
Type: Delete Pipe | Fits: GM Duramax
Unleash your Duramax with a stainless 4β race pipe designed for maximum flow and reliability.
This 4β Stainless Steel DPF Delete Pipe is purpose-built for 2015.5β2016 GMC Sierra and Chevy Silverado 2500/3500 HD trucks with the 6.6L Duramax engine. Designed for trucks equipped with the OEM-style 3-bolt flange at the turbo direct pipe, this race pipe removes the catalytic converter and DPF filter to deliver freer exhaust flow, reduced backpressure, and improved performance. Built from durable stainless steel with OE-style hangers, itβs a competition-ready upgrade for serious Duramax owners.
Vehicle Fitment
- β 2015.5β2016 GMC Sierra 2500HD/3500HD 6.6L Duramax (3-bolt flange models)
- β 2015.5β2016 Chevy Silverado 2500HD/3500HD 6.6L Duramax (3-bolt flange models)
- β Not compatible with Cab & Chassis models
Specifications
| Feature | Details |
|---|---|
| Product Type | 4β Stainless Steel DPF Delete Race Pipe |
| Tubing Size | 4β diameter |
| Material | High-grade stainless steel |
| Hangers | OE-style hangers for factory fit |
| Bungs | None (bung-free design for unrestricted flow) |
| Fitment Note | Designed for OEM 3-bolt turbo flange |
| Application | Off-road/competition use only |
Whatβs Included
- 4β stainless steel DPF delete pipe
- OE-style hangers pre-welded
- Required mounting hardware
Key Features
- Removes catalytic converter and DPF filter for max exhaust flow
- 4β stainless construction ensures long-term durability
- OE-style hangers provide direct, secure installation
- Bung-free design optimized for off-road use
- Optional 4β muffler available for sound control
Benefits
- Increased horsepower and torque from improved exhaust flow
- Lower EGTs for better engine efficiency under heavy load
- Stronger, more reliable design than restrictive OEM system
- Simplifies install with factory-style mounting points
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.
