2001 A6 4.2 Quattro Performance Mods....Are there any?
Hey everyone, I bought my audi about 2 years ago and I love it! Best car I have ever owned. The V8 kicks ass on the highway, but I'm looking to get a little more umph out of my engine. Do you know of any performance mods out there? Or of any tweaks that could be done to get some more horsepower? I've looked, but the only thing I've found is an exhaust system. Any help would be greatly appreciated.