Hello guys, Welcome to Africa's Largest Video Search Engine, and you are watching Audi S4 V8 4.2L | Wydech Milltek Sport Exhaust Non-resonated vs Resonated | UNT Tuning Center. and this video is uploaded by UNT Tuning Center at 2017-01-30T05:54:56-08:00. We are just promoting this video only for entertainment and educational purpose only. I hop you like our Video Search Engine. [cmaU-xHUVCs]