All systems use factory mounting locations providing stability and hassle-free installation.
High quality band clamps are included for a complete 360 degree 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 ATLAS exhaust system is constructed of 5" mandrel-bent aluminized steel tubing for maximum flow. Smooth transition bends allow for low turbulence, increasing horsepower, torque and lowering EGT’s.
2011-2015 Chevrolet/GMC Silverado HD/Sierra HD V8-6.6L (td) Duramax (LML)
144.2" to 167.7"
Does NOT fit Cab & Chassis models.
These exhausts will only fit 2015 models manufactured before July 2014 equipped with a non-flanged down pipe.
Does not fit cab & chassis.
Note: 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 Vehicles.
All aFe exhaust systems are engineered and manufactured in our Corona, California manufacturing facility.