A true 5" from the down-pipe back, the new Large Bore-HD exhaust is engineered to perform in the most extreme environments. This system is constructed from mandrel bent 5" stainless steel tubing for maximum flow, increased horsepower, increased torque and lower EGT's. This system is available in 5" down-pipe back without muffler. Large Bore-HD exhaust systems are the perfect combination of performance, fit and value.
Installation is a Snap:
This Large Bore-HD exhaust systems utilizes factory mounting locations providing stability and includes all necessary hardware for hassle-free installation.
High quality OE style band clamps are used for a complete 36 sealing surface.
OE style bayonet hangers are 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:
This Large Bore-HD exhaust system is constructed of mandrel bent 5" stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT's.
Notes: 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. Visit http://afepower.com/DPF/release.pdf for the release of liability form.
*This kit will only fit 2015 models manufactured before July 2014 equipped with a non-flanged down pipe.
All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.
Year Make Model SubModel Engine Fuel 2011-2015 Chevrolet Silverado HD LML Duramax (Turbo Diesel) V8 6.6L Diesel 2011-2015 GMC Sierra HD LML Duramax (Turbo Diesel) V8 6.6L Diesel
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