oem filter to K&n filter

gdspshing · 02-16-2009, 11:30 AM

after i have changed to k&n filter, i found that there's noticeable noise come from the engine when car is idle. also, strange noise when i am accelerate in first gear.
any idea what happening?something wrong with my intake/filter?

bimdaddy · 02-16-2009, 03:14 PM

Nothing wrong. You'll hear more induction and/or turbo spooling up with k&n compared to the more restrictive oem filter.

18LLC · 02-16-2009, 10:26 PM

Quote:

Originally Posted by gdspshing

after i have changed to k&n filter, i found that there's noticeable noise come from the engine when car is idle. also, strange noise when i am accelerate in first gear.
any idea what happening?something wrong with my intake/filter?

i don't hear anything different when it's idle, but it feels power jump at certain rpm.

02-16-2009, 11:30 AM	#1
gdspshing Lieutenant Colonel 62 Rep 1,526 Posts Drives: E92 335i Join Date: Mar 2008 Location: Btown@IN/HK iTrader: (15)	oem filter to K&n filter after i have changed to k&n filter, i found that there's noticeable noise come from the engine when car is idle. also, strange noise when i am accelerate in first gear. any idea what happening?something wrong with my intake/filter? __________________ Lease Assumption/Takeover for AW E92 335i MSPORT http://www.e90post.com/forums/showthread.php?t=396119
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02-16-2009, 03:14 PM	#2
bimdaddy Major 37 Rep 1,165 Posts Drives: 911 Carrera & G01 X3 Join Date: Feb 2007 Location: MD iTrader: (10)	Nothing wrong. You'll hear more induction and/or turbo spooling up with k&n compared to the more restrictive oem filter. __________________ 2020 X3 X-Drive 30i; Alpine White/Mocha
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