Not sure which 2001 Audi S4 Performance Exhaust Systems are right for you? We have over 7601 customer reviews, with an average rating of 4.5, to help you find exactly what you're looking for. Here's what some of our customers have said:
"I love this exhaust. Very nice sound. Sporty, powerful exhaust note, not abnocious or whiney at all. Retains the S4's class in my opinion." —Wesley H from Virginia Beach, VA bought a Borla Exhaust Systems for a 2001 Audi S4.