4" Cat & DPF Delete Pipe Kit - 2017-2019 GM Duramax L5P
4" Downpipe-Back DPF & CAT delete exhaust system.
Vehicle fitment - Stainless steel 4" CAT & DPF Delete Race pipe will fit 2017, 2018 & 2019 Chevy / GMC Duramax Diesel L5P. Silverado and Sierra pickup trucks. Crew cab short bed & crew cab long bed. This will not fit the Cab & Chassis trucks.
Fuel Mileage - Expect to see a significant increase in fuel mileage. If your DPF is plugged up your probably averaging about 13-14 mpg. More or less depending on the severity of the restriction. After deleting the DPF/CAT expect to get a combined mileage of 18-19 mpg. Larger tires and poor driving habits will skew mileage downward.
- 4" stainless steel piping
- OEM Style 4-Bolt Flange
- OE style hangers for easy installation
- No Muffler - Straight Pipe
- Maximum flow for competition applications
**Race tuning required**
QUESTIONS & ANSWERSAsk a Question
Does this pipe run the full length or do I need to the existing pipe to
It does not run the full length, so yes you will still need the existing piping. This is a replacement downpipe to delete the Catalytic Converter and Diesel Particulate Filter.