is there bruellen exhaust for S4 application? If so, where can I get it?
#7
If you are in the NorthEast, look up Boston Audi Tuning
that's where I got mine from at last year's NE Aftermarket Event. But be forewarned, a poor installation will cause you problems.<ul><li><a href="https://forums.audiworld.com/s4/msgs/736985.phtml">See this link.</a></li></ul>