This video shows the "Stealth" version of the B&B (Billy Boat) Performance exhaust system for the Audi 4.2L V8 S4. "Sport" version available to replace center muffler w/ x-pipe for more sound & more power. B&B exhaust available for purchase here - http://uspmotorsports.com/product_info.php?products_id=506
all u guys are hatting, it sound good
nevermkIII 2 months ago
sounds like a v6 quite frankly :-/
SuperAngryTaco 3 months ago
Great car, but somehow it sounds crap. It seems to have lost its V8 sound, which the original exhaust definetely offers. Maybe you should make a better video :D
SpydrowX 5 months ago