The 2003-2008 Audi S4 B6/B7 has been the first and only S4 equipped with the 4.2L V8 engine.
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https://www.supersprint.com/ww-en/performance-sport-exhaust-for-audi-s4-b7.aspx
Being rated as a strong powerplant, according to Audi's own 344 Hp claims, this 4.2L V8 did not live up to the expectations, and turned out to be considerably weaker, measuring only 300 hp.
However, it certainly left room for improvement in certain areas.
We at Supersprint discovered a substantial amount of hidden hp and torque, and uncorked it, by replacing the restrictive stock exhaust and catalytic system with oversized downpipes and HJS Motorsport units, and free flowing, volume-tuned silencers.
The Supersprint full system produces the perfect combination of peak horse power and low-to-midrange torque, and guarantees a rich, V8 sport sound note, with no rasp, and no droning either.
Our modular-design exhaust is available with a wide range of great-looking tail tip options, each style being made specific for the S4 early version, and for the facelift edition.
As always, Supersprint ensures easy, straightforward installation, perfect fitment, absolute reliability.