| 
AFE 49-44031 Exhaust Systems Exhaust System Fits GM Duramax LML 2011 V8-6.6L The aFe Mach Force XP DPF-Delete race turbo back exhaust system eliminates the use of the restrictive diesel particulate filter (DPF) and catalytic converter for maximum performance and extreme mileage gains. This free flowing exhaust system outflows the factory exhaust by 67% and is constructed out of durable 4" mandrel bent 409 stainless steel and uses bayonet style hangers and band clamps for a clean installation. This system comes complete with all tubing, bayonet hangers and band clamps. You will be shocked at the performance and mileage improvement you will see from this system. This system requires the use of a controller with a DPF-delete function. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility. is is a "Race Only" product used solely for competition. Its use is limited to closed-course racing that is formally sanctioned by a recognized racing organization. Any other use, including recreational off-road use, could be in violation of local, state and federal laws. This system also requires an aftermarket electronic module to work properly with the vehicle. | 
