Bimmerfest - BMW Forums - View Single Post - I believe cool air intake making whistle??
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Old 09-24-2012, 08:12 PM
lgr122 lgr122 is offline
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Location: Finland
Join Date: Aug 2012
Posts: 1,576
Mein Auto: '04 e46 Touring M-Sport
That's what my K&N does also, but i don't feel it's annoying.

Ofcourse i'm not sure if yours is possibly louder than mine.

Solution for you is to change stock air filter box back, that's more quiet.

Last edited by lgr122; 09-24-2012 at 08:14 PM.
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