Eurotuner carried an article about a newly released supercharger kit for the RS4 V8. Made by PES (Performance Engineered Systems) it took the stock RS4 V8 from 285whp to 400whp with the addition of the kit and water methanol injection.
The RS4 was also fitted with Milltek downpipes, sports cats and non resonted cat back exhaust
A short video of an RS4 equipped with a PES Supercharger
See also StrikeEngine directory – Audi Tuners