K&N Filter Noise

PrinceMiro · 06-19-2011, 08:55 AM

So I installed a K&N cone filter (and a heat shield). At low rpms, there's an annoying hissing/whistling sound. it goes away at higher rpms (2.5 and up). I'm guessing this is because of the increased air flow. What I'd like to know is whether or not there's a way to get rid of the sound. Are people with AFE intakes experiencing this? Thanks.

Quickid · 06-19-2011, 09:41 AM

I think that's part of the appeal. Most people buy them for the extra bit of intake noise.

HaiDef · 06-19-2011, 11:01 AM

all intaks i have had for any car in the past makes a whistling noise. That is just the air being sucked in.

DataStream18 · 06-19-2011, 12:07 PM

Yup, there is no issue. That's common.

rkcampbell · 10-11-2011, 12:53 AM

I had the Dinan CAI on my 2001 Z3 3.0 and the whistle/whine was NOT an appealing sound. I bought the car used like that and because it was only at low RPMs, I could handle the sound- although I never got used to it or learned to like it. Sadly, I couldn't compare the before and after but I hear it can be quite noticeable.

My new-to-me 2006 Z4M Roadster is all natural and I much prefer that sound (plus the extra 110hp of the M ;-)

Cheers,

Bob

06-19-2011, 08:55 AM	#1
PrinceMiro Lieutenant 42 Rep 407 Posts Drives: z4 3.0i Join Date: Apr 2008 Location: CNJ iTrader: (3)	K&N Filter Noise So I installed a K&N cone filter (and a heat shield). At low rpms, there's an annoying hissing/whistling sound. it goes away at higher rpms (2.5 and up). I'm guessing this is because of the increased air flow. What I'd like to know is whether or not there's a way to get rid of the sound. Are people with AFE intakes experiencing this? Thanks.
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06-19-2011, 09:41 AM	#2
Quickid First Lieutenant 11 Rep 331 Posts Drives: 08 Z4MC, 06 X5 4.4i, 99 323i Join Date: May 2010 Location: Ontario, Canada iTrader: (4)	I think that's part of the appeal. Most people buy them for the extra bit of intake noise. __________________
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06-19-2011, 11:01 AM	#3
HaiDef Lieutenant 24 Rep 416 Posts Drives: M240i Join Date: Mar 2010 Location: Houston iTrader: (2)	all intaks i have had for any car in the past makes a whistling noise. That is just the air being sucked in.
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06-19-2011, 12:07 PM	#4
DataStream18 Lieutenant 45 Rep 556 Posts Drives: 2003 ESS TS1 Z4 Join Date: May 2011 Location: Muskegon, Mi iTrader: (0) Garage List 2004 ESS Supercharg ... [4.00]	Yup, there is no issue. That's common.
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10-11-2011, 12:53 AM	#5
rkcampbell Private 1 Rep 73 Posts Drives: 2006 Z4 M Roadster Join Date: Oct 2011 Location: Victoria, Canada iTrader: (0)	I had the Dinan CAI on my 2001 Z3 3.0 and the whistle/whine was NOT an appealing sound. I bought the car used like that and because it was only at low RPMs, I could handle the sound- although I never got used to it or learned to like it. Sadly, I couldn't compare the before and after but I hear it can be quite noticeable. My new-to-me 2006 Z4M Roadster is all natural and I much prefer that sound (plus the extra 110hp of the M ;-) Cheers, Bob
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