Performance air filter

Abbot26 · 07-08-2011, 01:15 AM

Anyone tried a performance air filter on a 6 pot diesel ?

Was wondering if it was worth it in terms of power gains ....

chris... · 07-08-2011, 03:04 AM

i dont think you would see much might make your engine breath easier though
i have the bmw performance CAI on my 325 petrol not much hp gain but engine sounds great and seems more free reving it wasnt worth what bm charge for it.
Thankfully i found one on ebay.

MEGA · 07-08-2011, 03:12 AM

If anything it will just cause issues due to the EGR valve and EGR pressure sensor getting more soot through them than usual.. I'd say.

jinjur · 07-08-2011, 04:54 AM

Most certainly dont use an oil/paper based performance air filter as the oil cocks with the MAF sensor internals....

And tbh, it would sound sheeeeite on a dervola.....not induction noise as such, just sounds like you have turned the clatter up.

Oh, and you will be deafened by turbo "suck" noises.

Not very....well.....BMW.

A

SO8 · 07-08-2011, 06:31 AM

I have never noticed any difference using a performance air filter ... it may help slightly but I have been more worried in the last few years over stories of the oil getting on the MAF sensor ...

Abbot26 · 07-08-2011, 07:15 AM

Sounds like it's a waste of money then. Cheers for the advice guys.

V88TAC · 07-08-2011, 09:01 AM

Yea its a waste of money! I brought one but mines a 4pot and had a run on the dyno and not a single bhp gain! I was devestated! Bloody thing cost £50! Lol

magic77 · 07-08-2011, 09:12 AM

I found using piper-cross on both my e46 and e90 320D only thing it improved was huge reduction in smoke (from black cloud to small puff) and in both few mpgs and quicker spool up of engine. Main thing is that unless you remap then the filter is definitely pointless

V88TAC · 07-08-2011, 09:46 PM

The remap made no differance at all!

07-08-2011, 01:15 AM	#1
Abbot26 Private First Class 29 Rep 192 Posts Drives: X3M Comp Join Date: Jul 2011 Location: Swindon iTrader: (0)	Performance air filter Anyone tried a performance air filter on a 6 pot diesel ? Was wondering if it was worth it in terms of power gains ....
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07-08-2011, 03:04 AM	#2
chris... Private 3 Rep 83 Posts Drives: 325 e92 M sport Join Date: Oct 2009 Location: warrington iTrader: (0) Garage List 2007 325i M sport [9.00]	i dont think you would see much might make your engine breath easier though i have the bmw performance CAI on my 325 petrol not much hp gain but engine sounds great and seems more free reving it wasnt worth what bm charge for it. Thankfully i found one on ebay.
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07-08-2011, 03:12 AM	#3
MEGA Dieseasal 204 Rep 6,881 Posts Drives: LCI E92 335d M-Sport Join Date: Jan 2009 Location: Harrow, London iTrader: (2)	If anything it will just cause issues due to the EGR valve and EGR pressure sensor getting more soot through them than usual.. I'd say. __________________ Previously: 2003 Peugeot 206 1.6 8v \| 2006 E90 320d M-Sport, 19" BBS CH, Full Ice-cold JL audio install, August 2010 Total BMW 6 page feature car. \| 2003 Nissan 350Z GT Coupe 286BHP Now:2010 E92 LCI 335d M-Sport
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07-08-2011, 04:54 AM	#4
jinjur yes....spelt with J's 55 Rep 963 Posts Drives: F31 325D MSport Join Date: Jan 2009 Location: NoRtH eYeLaNd iTrader: (0)	Most certainly dont use an oil/paper based performance air filter as the oil cocks with the MAF sensor internals.... And tbh, it would sound sheeeeite on a dervola.....not induction noise as such, just sounds like you have turned the clatter up. Oh, and you will be deafened by turbo "suck" noises. Not very....well.....BMW. A
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07-08-2011, 06:31 AM	#5
SO8 Major 243 Rep 1,205 Posts Drives: BMW G42 M240i xdrive Join Date: Jun 2010 Location: Earth iTrader: (0)	I have never noticed any difference using a performance air filter ... it may help slightly but I have been more worried in the last few years over stories of the oil getting on the MAF sensor ...
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07-08-2011, 07:15 AM	#6
Abbot26 Private First Class 29 Rep 192 Posts Drives: X3M Comp Join Date: Jul 2011 Location: Swindon iTrader: (0)	Sounds like it's a waste of money then. Cheers for the advice guys.
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07-08-2011, 09:01 AM	#7
V88TAC Second Lieutenant 9 Rep 232 Posts Drives: 320D Msport E92 Join Date: Sep 2010 Location: N.Ireland iTrader: (0)	Yea its a waste of money! I brought one but mines a 4pot and had a run on the dyno and not a single bhp gain! I was devestated! Bloody thing cost £50! Lol
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07-08-2011, 09:12 AM	#8
magic77 Brigadier General 258 Rep 3,815 Posts Drives: ex- 335i Join Date: Apr 2009 Location: Surrey iTrader: (2)	I found using piper-cross on both my e46 and e90 320D only thing it improved was huge reduction in smoke (from black cloud to small puff) and in both few mpgs and quicker spool up of engine. Main thing is that unless you remap then the filter is definitely pointless __________________ F30 335i M Sport - now departed
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07-08-2011, 09:46 PM	#9
V88TAC Second Lieutenant 9 Rep 232 Posts Drives: 320D Msport E92 Join Date: Sep 2010 Location: N.Ireland iTrader: (0)	The remap made no differance at all!
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