07.5-10 GM Duramax AFE 4in. Stainless Steel Exhaust Race Pipe; CCSB - 49-44020

Fits Only Crew Cab Short Bed The MACH Force XP race pipe upgrade kit is constructed of mandrel bent 409 stainless steel with OE style hangers and clamps. This 4" down pipe provides maximum flow for increased horsepower, torque and throttle response. The increased air flow also lowers EGT's and helps improve MPG. All hardware and components are included for a no-trouble installation. Note: This is a "Race Only" product used solely for competition. Its use is limited to closed-course and open-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. All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.