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      07-16-2013, 03:10 PM   #9
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Drives: 09 335xi
Join Date: Apr 2013
Location: Rockton, IL

Posts: 107
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Originally Posted by Jeff@TopGearSolutions View Post
To answer your question, yes. I'm confused though because the HPF is the farthest thing from drone free. On the scale of 1-10. 10 being loudest. The HPF is about an 8. With 10 being completely open straight pipes and/or open downpipes.
Can you suggest a good alternative to HPF. Based on YT videos (havent heard a 335i in person only 135i) I really like the sound but not sure what other brands would sound similiar.
2009 BMW 335XI - COBB AP, BMS DCI, More to come...