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      08-25-2018, 05:56 PM   #31
DYOOS
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Drives: 335i E90 N55
Join Date: Jul 2017
Location: Bay Area

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Just got the PE mod done on my car, and overall I like it. I do think the drone is a bit too much for my taste at times, specifically around 2-3k RPM.

Does anyone have any ideas to decrease the drone after getting the PE mod done?

***EDIT: So I just realized the vacuum line that hooks up to the actuator that's in the muffler is missing. Would that make a difference in less drone with it plugged in properly even with the resonator now a straight pipe?
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Last edited by DYOOS; 08-25-2018 at 07:14 PM..
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