This 4" Cat & DPF Race Pipe removes the catalytic converter and DPF filter, boosting exhaust flow to enhance off-road performance. Its stainless steel construction offers exceptional durability. The included OE-style hangers ensure that you can install the pipe smoothly. Additionally, race tuning is required, allowing your vehicle to achieve improved power and optimized exhaust performance. It requires cutting of the factory exhaust.
Available in 409 (Standard) Ferritic stainless steel and in 304 (Series III) Austenitic stainless steel.
*Does not fit late model 2015's with a 3 Bolt Flange. Will not fit Cab & Chassis trucks.
*Off-road use only. Custom tuning is required*
GM Duramax 6.6L - 40 Cal 4" Cat & DPF Race Pipe (2011-2015)
- 2011, 2012, 2013, 2014, & 2015 GMC Sierra 2500 / 3500 HD with a 6.6L Duramax diesel engine. Requires cutting of the factory exhaust.
- 2011, 2012, 2013, 2014, 2015 Chevrolet Silverado 2500 / 3500 HD with a 6.6L Duramax diesel engine. Requires cutting of the factory exhaust.
- Does not fit late model 2015s with 3 bolt flange.
- Will not fit Cab & Chassis trucks
- 2011, 2012, 2013, 2014, & 2015 GMC Sierra 2500 / 3500 HD with a 6.6L Duramax diesel engine. Requires cutting of the factory exhaust.
409 FEATURES (STANDARD)
304 FEATURES (SERIES III)
- 4" Ferritic stainless steel piping
- OE style hangers for easy installation
- Maximum exhaust flow & no bungs
- Moderate rust resistance - 5-8 years
- Magnetic
- 4" Austenitic stainless steel piping
- OE style hangers for easy installation
- Maximum exhaust flow & no bungs
- High rust resistance - up to 20 years
- Non-Magnetic
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