Quote:
Originally Posted by W Cole
This may be what I end up doing. I'm most concerned with the "BMW inspection."
It looks like it may be difficult to cut them open and weld a straight pipe inside as the inlet side of the cat is oblong shaped..
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LOL and you dont think they will notice the sound difference? Theyve seen 100's of M3's and know the sound of a stock one vs one with the cats cleaned out. Stock appearance or not. Sound wont fool anyone.