I just aquired a virgin 1995 S6. I had all of the service updated done, timing belt, water pump, power steering pump, valve cover gasket, all new shocks, etc. My next move is to increase the performance of the engine. I don't see much on the net to know is recommended by other tuners. Is there a web site or recomended shops that can point me in the right direction

 

The 5 cylinder turbo isnt a common engine here in the us so the perfomance mods are more limited. Check out dahlbach racing. Theyve gotten some really high perofmance numbers from the 5 cylinder.