4" DPF & CAT delete pipe for the 2008, 2009 & 2010 Ford Powerstroke 6.4 Diesel. Allows you to remove the factory diesel particulate filter & catalytic converter. Bolts directly to the factory down pipe or aftermarket down pipe. Secured using a 2 bolt laser cut flange. This DPF & CAT delete pipe will fit all Ford F-series Super Duty F-250/F-350/F-450/F-550 pickup trucks. Fits all bed & cab configurations, including cab & chassis trucks. Installation takes approx. 1hr, cutting may be cutting required. Choose between aluminized steel and T409 stainless steel. Aluminized steel is our best seller and the most popular. However, we suggest the stainless upgrade for those who regularly operate there truck on salted winter roads. 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 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.