AWE Track Edition Exhaust for Audi B9 S4 - Non-Resonated

From the masters of S4 performance, AWE proudly presents the B9 S4 exhaust solution. Signature AWE tone, performance, and options for every taste and budget. Max gains of 16 hp and 17 ft-lbs of torque at the crank (exhaust) Available as sophisticated Touring Edition, unleashed Track Edition, and valved SwitchPath™ Touring Edition Exhausts feature AWE’s proprietary drone-cancelling solution, 180 Technology® SwitchPath™ Exhaust can be controlled with optional handheld remote, or factory valve programming Downpipes and precision-engineered x-pipe included in all editions Specifically engineered downpipe resonators for use with aftermarket catalysts available separately Compatible with standard and sport differentials 90mm or 102mm double-walled tips available in chrome silver or diamond black 96mm double-walled stainless steel tips with carbon sleeve Proudly engineered, designed, and manufactured in-house at AWE, in the USA Less is more: clean, straight-through design maximizes performance Handcrafted from dual 2.5” CNC mandrel-bent U.S.-sourced .065” wall T304L stainless steel Direct bolt-on system, factory-like install simplicity Perfect fitment - guaranteed No Check Engine Light - guaranteed Featuring the AWE Lifetime Exhaust Warranty