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      03-11-2015, 04:35 PM   #127
aacabriolet
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Drives: '14 435i Coupe
Join Date: Apr 2009
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Quote:
Originally Posted by Earthmaster View Post
I have stock exhaust 335i with resonator delete and Catless downpipes. Its a bit drony at 2k rpms so you gotta modulate the throttle more on the highway before it gets annoying. Its livable in DD but on long trips I wouldn't want it. I want people to be aware of this before they go catless and no resonators. My suggestion is keep the resonators on if your on stock exhaust. I might go aftermarket custom exhaust so i don't mind just need to hold off for a bit.
Thanks

So is it the resonator delete, or downpipe which causing the drone? I would think the downpipe?