custom S4 exhaust

magna-flow mufflers with straight pipes all the rest

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Audi S4 Exhaust Comparison
Achtuning has two B7 Audi S4s in the same day for Exhaust installation, one with STāSIS Engineering's cat-back Exhaust and the other with APR's system. www.achtuning.com





Audi s4 drifting in snow
Audi s4 drifting in the snow





AUDI S4 B6 BYPASS PIPES TUTORIAL
Detailed step by step instructions to make a custom muffler by pass pipe. The stainless bypass pipe is a low cost upgrade option that dramatically increases tone and volume of the V8 S4, easily removable as well. Watch through to the end, there is a special surprise! Rare car (1 of 2 made) never before caught on video!





S4 and GTI
S4 - Fast Intentions resonated fullback GTI - Milltek DPs and Magnaflow catback




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