Aftermarket Cat back exhaust for 2001 A6 4.2
 

I just purchased a 2001 A6 4.2. Great care, I really like it. I'm quickly learning that thier are not a whole lot of performance upgrades that you can do to this car at a reasonable price. Does anyone know who offers a good cat back exhaust system for this car. My main objective is to increase performance, not just sound cool.

RE: Aftermarket Cat back exhaust for 2001 A6 4.2
 

peromance upgrades on the 4.2 are best in the form of superchargers. There is one in development right now - I don't know of any that are already on the market. The cat back exhaust will give you an additional 7-10% increase in HP - not much for the dollar investment.

RE: Aftermarket Cat back exhaust for 2001 A6 4.2
 

check this:
http://forums.audiworld.com/a6/msgs/187747.phtml