SELECTIONS: Products : Audi : S4 : Exhaust Systems

14902 Borla Catback Twin Tip Exhaust Audi S4 2.7T 00-02 List Price: $868.99 Our Price: $775.99 You Save: $93.00 For the S4 enthusiast desiring a deep, sportscar growl with enhanced throttle response and power output, we highly recommend the Borla cat-back exhaust system. Now available with dual 3" rolled edge tips on a single inlet/dual outlet rear muffler, this system cannot be beat in terms of looks, sound, and performance. Dyno testing has shown an average 7 crank hp improvement using this system, due to its big 3" pipe diameter and low restriction, straight shot mufflers. The S4 Borla system...