4" Downpipe back DPF delete exhaust system allows you to remove the factory diesel particulate filter & catalytic converter on your 2007, 2008, 2009 & 2010 LMM Duramax. It bolts directly to the factory turbo-direct pipe. Fits Chevy/GMC 2500 & 3500 pickup trucks. All necessary pieces to fit the crew cab long bed are included. If you have a short bed or extended cab; cutting may be required. Installation takes approx. 2hrs. Removal of the DPF & Catalytic converter involves removing and eliminating emission related sensors. Because of this, when installing a DPF & CAT delete pipe it must also be used with a DPF delete capable tuner. Our most popular DPF delete tuner for the 07-10 Duramax is the H&S Mini Maxx. Expect to increase fuel mileage 3-4 mpg. More or less depending on how plugged up your diesel particulate filter is. Typically we see around 18-19 mpg combined mileage. 1 year warranty. Built to order, may take up to 10 days before shipping.
*** WILL NOT FIT REGULAR CAB OR CAB & CHASSIS TRUCKS ***