Baun Performance GESI 4" Downpipe Flow Test

Baun Performance DP Flow Test

Background: Baun Performance sells a 400 CPI GESI catted downpipe and an accompanying 3.5″ resonated midpipe for the Mk7 GTI. I had concerns that future tunes using the Cobb Accessport may cause the CEL to illuminate if I continued to use a Trackslag catted downpipe, so I switched over to the Baun Performance setup. The

Baun Performance DP Flow Test Read More »