Quote:
Originally Posted by DeeboSTI
I have the Evolve Rear Race Exhaust & Catless down pipes with the straight thru Supersprint MP and it has a TERRIBLE resonance at 1900/2000rpm but below or above 1900/2000rpm it sounds beautiful.
But not sure I can put up with this resonace at 1900/2000rpm & after multiple calls to Evolve for advice & them not calling me back I think I may change back to standard mid pipe or even try a different exhaust system!
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I personally wouldn't go as far as getting a whole new exhaust. These BMW inline-6s tend to get raspy and resonate a lot when you get straight through exhausts. I would recommend just getting a new midpipe or welding in resonators in them.
My E46 M3 exhaust is completely straight through and I get a nasty rasp/resonance at around 2700RPM. My buddy has the same setup except for two resonators in his midpipe, his resonance is absolutely gone.
The Evolve Automotive muffler is probably one of the best I've heard for the 1M. You should keep it!!!
