High Flow 409 Stainless Steel Muffler:
This 409 stainless steel performance muffler is designed to provide a deep, throaty, powerful sound on acceleration, but maintain a smooth sound at idle. This muffler is constructed of brushed finished 409 stainless steel and uses a straight through perforated core with heat resistant packing to reduce backpressure and maximize exhaust flow. You will see increased performance and improved throttle response over the factory exhaust. Also featuring a stamped aFe POWER logo for an aggressive style. Muffler Specifications: 4" Center Inlet /Outlet, 8" Round x 24" L Body Diameter.
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 4" mandrel-bent 409 stainless steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s.
2017 Chevrolet Silverado HD 2500/3500 V8-6.6L (td) Duramax
2017 GMC Sierra HD 2500/3500 V8-6.6L (td) Duramax
Extended Cab/Short Bed, 6.6 ft. Bed, 143.5” Wheelbase
Crew Cab/Short Bed, 6.6 ft. Bed, 153.7” Wheelbase
Extended Cab/Long Bed, 8 ft. Bed, 158.1” Wheelbase
Crew Cab/Long Bed, 8 ft. Bed, 167.7” Wheelbase
Cutting is required for some cab configurations.
This is a "Race Only" product that is to be 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. This system is not currently CARB exempt and is not available for sale in California or for use on any vehicle registered with the California Department of Motor Vehicle.
All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.