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Originally Posted by Lochstar8
Well I got the 330i muffler on my 323i and it’s much quiter than I thought it would be even with the valve open so I don’t think I will be installing an actuator for the valve anytime soon.
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I'm glad this worked out for you, and that the 330i exhaust is a viable set up with stock headers. I presume that my noise issue is due to catless headers. I previously ran stock headers, secondary cat deletes and the PE. Sounded glorious but became far too loud and obnoxious overtime. I still miss it some days though.
Quote:
Originally Posted by Lochstar8
Also lost some horsepower compared to my “PE moded” muffler but it is quite a bit quiter and has ZERO and I mean Zero drone. Just though I’d throw that little update in there.
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I felt that acceleration improved with the more free flowing 330i muffler but wasn't sure if I was imagining things. Nice to know that you also felt a difference. How did you "PE mod" your muffler?