Audi S4 at the track

Infeneon Raceway Sonoma,CA

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BMW 335 vs. Audi S4
335 is completely stock. S4 has aftermarket Exhaust, air filter, and 19" rims. 1st race 335 mis-shift, and 2nd race.. last two races there were no driver errors.





AUDI S4 SXISTO VS RX-8
AUDI S4 SXISTO VS RX-8





Audi S4 passing BMW M3 on track
Audi S4 passing BMW M3 on track





B&B Performance Exhaust - Audi S4 4.2L V8 (B6) - "Stealth" Version
For more information about this product, visit: http://uspmotorsports.com/B-BExhaust-BillyBoat-ExhaustSystem-B6S4-.html 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.




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