Quote:
Originally Posted by OldPueblo
Well, I did it! Unplugged the valve harness and taped it all up. Sounds better especially lower rpms, not as much as I had hoped....maybe still need to drive it some
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Same here. Not much difference. My muffler shop can take the muffler apart and replace the perforated pipes with solid ones for $500. That would be better.
I still admit that the exhaust on the X5M sounds so much better than the new M3/M4 stock. I love how loud the crack is between WOT gear shifts.