Increased exhaust flow means improved torque, horsepower and lower EGT's. That's why your Duramax LML diesel needs the SATURN 4S down-pipe back exhaust system by aFe Power.This exhaust is built from 4" mandrel-bent 409 stainless steel tubing and includes a muffler-delete pipe for optimum flow and a race-inspired, aggressive sound. This system does not include a tip. SATURN 4S exhaust systems are the perfect combination of performance, fit and value.
Installation is a Snap:
This SATURN 4S exhaust system includes an extension pipe to fit multiple cab configurations and uses factory mounting locations, providing proper fitment, stability and a hassle-free installation. Cutting may be required for some wheelbases.
Quality OE style flange and band clamps are used for a complete 360 degree sealing surface.
A muffler delete-pipe is used in place of the muffler for a true race-inspired sound and maximum flow unleashing all available torque and horsepower from your rig.
OE style bayonet hangers are used to maintain a stable pipe location during high vibration and high heat conditions. The bayonet tip locks into the hanger bushing for an OE style fit that does not change with time.
Flow and Performance:
Constructed of 4" mandrel bent 409 stainless steel tubing for longevity, the smooth transition bends result in increased exhaust flow and lower EGT's for improved throttle response and overall sound and performance.
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
This kit will only fit models manufactured after July 2014 equipped with a 3 bolt flanged down pipe. Does not fit cab & chassis.
This system may require an aftermarket electronic module to work properly with the vehicle.
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.