How To Make An Audi S4 Perform Like An Audi RS4 In Five Seconds...
 

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I just bought one of those 3 weeks ago, CPO (S4, not RS) .. The DSG tranny is already doing weird stuff... Typical Audi. Though I have no doubts about Chris Harris' claims ( I had a GTI with REVo once, it was quick), I wouldn't risk the remainder of my warranty for the REVO chip unless the dealer supported it. I think in the US, Revo is now under Stasis, and the tune voids CPO (but not the original warranty, go figure). The S4 even stock is a stonking fast car ! Wish I'd found a stick though...

Imagine how quick that S4 would be if he washed it! ;-)

That is the beauty of forced induction. Though no V6 will EVER sound like that RS4 V8.......