According to Avus Performance, its tweaked Audi S4 has had the engine performance adjusted accordingly to expedite the 20x9-inch CC-line wheels properly. Their words. Parsing the English translation of the originally German press release, however, will tell you all you need to know.
Ride height is twiddled by a suspension setup that uses threaded strut tubes to adjust the spring perches. Those 20-inch wheels wear Hankook Ventus S1 tires, and the stock exhaust has been swapped out for stainless steel mufflers. Body mods in shiny black or carbon fiber are tacked on before the cars leave the Avus shop, too. Thanks to the revised plumbing and some engine tweaking, the AP-fettled sedan churns out 424 horsepower.
There you have it, an Audi that's been given a spiff. Now if they'd send one to us, there might actually be something tangible to say about it, instead of regurgitating the press release for all you hungry little sparrows. Full PR posted after the jump.