Avus Audi S4 WallpaperAvus Audi S4 WallpaperGerman tuners Avus is offering a tuning package for the Audi S4 Sedan which includes a custom exhaust system help bring the 3.0-liter supercharged V6's output from 333HP to 430HP.To help the modified S4 to tackle corners better,the German tuner adds a new spring kit as well a new set of lightweight 20-inch alloy wheels that are wrapped in 255/30 Hankook
