B5 S4 Straight pipe AMAZING SOUND!!!!

this is my 2001 S4, all stock exept for Exhaust

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APR B5 S4 RSC Exhaust System
Reflective Sound Cancellation allows for maximum Exhaust gas flow while completely eliminating in cabin sound resonance (drone). RSC™ incorporates innovative technologies developed in conjunction with NASA. With limited use of packing materials and no baffles, RSC™ allows for a completely straight and free flowing Exhaust path through the RSC™ mufflers. Reflective Cancellation bounces the undesirable sound waves into each other to attenuate the wave and completely eliminate the low frequency tones that create drone. Each RSC™ muffler is tuned to eliminate specific, undesirable sound frequencies allowing only the engine's desirable Exhaust notes to be heard and improving performance. The B5 S4 in the video has a full APR RSC Exhaust System with an APR Stage III K04 turbocharger System.





B5 S4 and WRX messing around at El Mirage dry lakebed
B5 S4 with HB tuning and a WRX with Exhaust, downpipe, and a few other mods. It was a fun day and we plan to go back for more shots





Spirited Driving in my Stage III B5 S4
turbos: Frankenturbo F21-BTs Tune: Daz Dillenger (93 Octane) Decided to spend my New Year's Day off and drive down to Mexico for some spirited driving... (Audizine: PovGRide742) (Some footage simulated or recorded in Mexico)





2001.5 Audi S4 loud straight pipe true dual exhaust cat delete
Just a start up and drive away to show the true dual Exhaust. has SSAC catless 3 inch down pipes and cat deletes with 2.5 true dual Exhaust all the way back




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