Audi S4 V8 JHM 2.5" full exhaust

JHM 91 Octane Tune JHM/FI non-resonated 2.5" catback 2.5 downpipes

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Audi S4 V8 Corsa Exhaust
Fully Catless Corsa Exhaust on a B7 S4 1st video is cold startup, second is warm startup the rest is self-explanatory





Audi S4 V8 Magnaflow 14851 Exhaust
My Audi S4 with custom Magnaflow Exhaust (14851 mufflers).





2007 Audi S4 Neuspeed exhaust sound, launches, and acceleration
This is a video of my 2007 Audi S4 DTM Exhaust sound, acceleration, and a couple of launches.





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




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