Fits Only Extended Cab Short Bed
The LARGE Bore HD race pipe upgrade kit is constructed of mandrel bent 409 stainless steel with OE style hangers and clamps. This 4" race 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. This exhaust fits the Extended Cab Short Bed Duramax LMM models only.
This is a Race Only product that is to be used solely for competition, it cannot be used on vehicles that are operated on public streets, roads or highways. 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. To complete the purchase of this item, aFe Power competition acknowledgement/liability release form must be filled out and submitted.
All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.