This is the first fire with my homemade 3" exhaust system. It is comprised of 3" mandrel bent tubing, a Magnaflow 22" muffler and Magnaflow cat. I have all of the pieced mounted and clamped. Now time to have some welding done. Note: my cheap camera wasn't able to capture the lower frequencies, there are some truncated sounds. The engine is stock. Detailed info and parts list at m3guru.bmwe30m3.net
Schicker Wagenheber...! ;-)
Korbi666 1 year ago