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      03-03-2011, 07:30 PM   #30
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Drives: E90 325i, E82 135i
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Originally Posted by bmroxm5 View Post
John yes deleting the centre resonator may induce drone but I'm thinking many people successfully use the PE with straight pipes and have no drone?.
Yes, I also read that on the US forum. I'd expect a genuine BMW exhaust not to have any serious drone issues, but I think it still depends a bit on the user's preference for sound. I still intend to get a Eisenmann muffler but I'm going to leave it until around mid year, mainly because I'll be taking my car to the dealer for some warranty work and servicing.
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