6.6L Duramax CAT & DPF Delete Pipe | 2015.5-2016
SKU: DPSS-GM-16-S3-DPF
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Product Description
4" Stainless Steel DPF Delete Pipe for 2015.5–2016 GMC / Chevrolet Duramax 6.6L 2500/3500
If you're running a 2015.5–2016 Duramax 6.6L in a 2500 or 3500, this 4-inch DPF delete pipe opens up the exhaust the way it should be for off-road use. It replaces the restrictive factory section and lets the turbo breathe easier, which helps the truck respond quicker under load.
Vehicle Compatibility
Years: 2015.5, 2016
Make: Chevrolet, GMC
Model: Silverado 2500, Silverado 3500, Sierra 2500, Sierra 3500
Engine: 6.6L Duramax Turbo Diesel (LML)
The 2015 LML delete pipe is offered in two variants based on factory turbo outlet flange design. Selecting the correct version is mandatory for proper fitment:
- 2011–Early 2015 – Uses a V-band clamp at the turbo outlet. (To Buy this product Click Here)
- Late 2015–2016 – Uses a 3-bolt turbo outlet flange. {This product}
Built for Real Conditions
- 4" mandrel-bent stainless steel tubing for consistent internal diameter
- Handles high EGTs without warping or cracking
- Corrosion-resistant for long-term use in harsh climates
Improved Exhaust Flow
- Reduces backpressure compared to the stock DPF system
- Helps support horsepower and torque gains when paired with proper tuning
- Smoother throttle response, especially when towing or accelerating
Direct Fitment
- Designed specifically for 2015.5–2016 Duramax 6.6L 2500/3500 models
- Works with factory-style hangers and mounting points
- Straightforward install for experienced techs with standard shop tools