aFe power introduces a Large Bore-HD race pipe for 15.5-16 GM Diesel Trucks with V8-6.6L (td) engine. This race pipe is constructed from 4" mandrel bent stainless steel tubing for maximum flow, increased horsepower and torque. The Race pipe is designed with a unique tapered flange to fit the flanged down pipes found on models built after July 2014. The factory exhaust system will require to be cut prior to installation.
A unique tapered OE style flange is used for a complete 360 degree sealing surface.
A OE style bayonet hanger is used to maintain a stable pipe location during high vibration and high heat conditions. The Bayonet tip holds the hanger bushing in place for an OE style fit that does not change with time.
Flow and Performance:
The Large Bore-HD race pipe is constructed of 4" mandrel bent stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower and torque.
Fits: Crew Cab/Short Bed (153.7"Wheelbase), Crew Cab/Long Bed (167.7" Wheelbase), Extended Cab/Short Bed (144.2"Wheelbase), Extended Cab/Long Bed (158.2" Wheelbase) & Single Cab/Long Bed (133.7" Wheelbase) models.
Note 1: This kit will only fit models manufactured after July 2014 equipped with a flanged down pipe. Does not fit cab & chassis, Fits 133.7 " to 167.7" wheel bases only.
Note 2: This is a "Race Only" product used solely for competition. It's 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. This system also requires an aftermarket electronic module to work properly with the vehicle.
All aFe exhaust race pipes are engineered and manufactured in our Corona, California manufacturing facility.