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The AWE Touring Edition exhaust for Audi B9 S4 refines the B9 soundtrack with AWE's signature character: civil at cruise, full of pops and burbles under load. The system replaces factory valving with AWE's 180 Technology-equipped resonators and electronic valve simulation for balanced cabin behavior. Handcrafted from dual 2.5" CNC mandrel-bent T304L stainless, it includes 102mm double-walled tips, a precision x-pipe and is dyno-proven to add measurable crank power.
AWE Tuning Audi B9 S4 Touring Edition Exhaust - Non-Resonated (Black 102mm Tips)
