AFE air filter??

TLEE · 01-27-2009, 12:20 PM

Should I change my stock air filter to AFE?
5-10 HP increase? 1-2 HP increase?
Someone said Leave that intake system OEM. AFE does nothing (or worsens it).
Anyone else feel the difference? Good or bad.

Edit: Add Dyno result
http://i12.photobucket.com/albums/a2...vving001-2.jpg

ChitownM3 · 01-27-2009, 12:26 PM

I got it, can't say that I feel a difference. But would one be able to feel a 5hp difference anyways? I don't think so. It increases airflow, so I'm sure it won't hurt.

Nate@IND · 01-27-2009, 01:42 PM

Here a review of the AFE filter by Mike@IND

Quote:

Originally Posted by Mike@IND

So yesterday, I had the chance to throw an AFE oiled filter (courtesy of ShadeM3) into the M3. Installation was self-explanatory - took all of about 10 minutes to do and the filter went on with ease. It mated up with the factory pieces flawlessly.

AFE filter install photos:

My intial impression is that it definitely SOUNDS meaner. It's a nice, cheap compliment to the Eisenmann Race exhaust for sure! As if it wasn't addicting enough to give the throttle a little blip for the exhaust alone, the filter does add a bit of growl. AFE does claim a power difference, but I am still under break in (~150 mi.), so it's really hard to gauge, but I'll be sure to keep you updated as my mileage piles on.

AbaundvrM3 · 01-27-2009, 02:18 PM

I like my oiled one and I recommend it...its a cheap mod that should give you 3-5 hp. Anything to let the car breathe easier/better is a good mod especially since its cake to install and I'll be honest with you, the car felt like it had a lil more punch.

TLEE · 01-27-2009, 03:00 PM

I have an RD Sport axle back installed on my E90 M3 with AFE dry filter and since the installed I felt loose torque on low end, so I put the stock air filter back.
Will the AFE air filter loose low end? I could not wonder this mystery out of my mind.
Last Friday I found a decent local tuner shop with Dyno machine and they are Forum member friendly, give discounts to Forum members. (G-Dimension, James, 626-839-3777 City of Industry CA)
I was running the OEM filter in the car and took the AFE filter with me.
After few run with OEM filter, the shop let me swap to AFE filter to make a comparison, below is the Dyno result.
All and all, I was quite surprise to see the low end torque increase; I guess my butt Dyno was wrong.

Note: Blue line is run with OEM filter.
Red line is run with AFE dry filter.
http://i12.photobucket.com/albums/a2...vving001-2.jpg

psuwcc112 · 01-27-2009, 03:39 PM

Quote:

Originally Posted by TLEE

I have an RD Sport axle back installed on my E90 M3 with AFE dry filter and since the installed I felt loose torque on low end, so I put the stock air filter back.
Will the AFE air filter loose low end? I could not wonder this mystery out of my mind.
Last Friday I found a decent local tuner shop with Dyno machine and they are Forum member friendly, give discounts to Forum members. (G-Dimension, James, 626-839-3777 City of Industry CA)
I was running the OEM filter in the car and took the AFE filter with me.
After few run with OEM filter, the shop let me swap to AFE filter to make a comparison, below is the Dyno result.
All and all, I was quite surprise to see the low end torque increase; I guess my butt Dyno was wrong.

Note: Blue line is run with OEM filter.
Red line is run with AFE dry filter.
http://i12.photobucket.com/albums/a2...revving001.jpg

Looks good, i am also wondering about whether there is power loss on the low end with AFE filter, since i also have one in my car. By any chance, you have bigger graph to show more detail?

psuwcc112 · 01-27-2009, 03:55 PM

TLEE,

Those are some solid number on the inprovment. What kind of exhaust do you have on in the dyno.

TLEE · 01-27-2009, 04:20 PM

Quote:

Originally Posted by psuwcc112

TLEE,

Those are some solid number on the inprovment. What kind of exhaust do you have on in the dyno.

RD Sport muffler, just the mufflers.
But the muffler is unchanged during the Dyno run, only change OEM to AFE air filter, so the improvement is create by the AFE filter.

MMMorish · 01-27-2009, 04:56 PM

Oh wow! 7whp and 5wtq is pretty impressive indeed for just a filter!

Kadarin · 01-27-2009, 06:15 PM

I can't think of any reason why less restriction in the airflow would cause a reduction of low-end torque. An increase in total airflow (in either the intake or exhaust) at the expense of velocity might, but velocity rather than airflow restriction is the key there.

Bluesummer · 01-27-2009, 06:24 PM

Quote:

Originally Posted by TLEE

I have an RD Sport axle back installed on my E90 M3 with AFE dry filter and since the installed I felt loose torque on low end, so I put the stock air filter back.
Will the AFE air filter loose low end? I could not wonder this mystery out of my mind.
Last Friday I found a decent local tuner shop with Dyno machine and they are Forum member friendly, give discounts to Forum members. (G-Dimension, James, 626-839-3777 City of Industry CA)
I was running the OEM filter in the car and took the AFE filter with me.
After few run with OEM filter, the shop let me swap to AFE filter to make a comparison, below is the Dyno result.
All and all, I was quite surprise to see the low end torque increase; I guess my butt Dyno was wrong.

Note: Blue line is run with OEM filter.
Red line is run with AFE dry filter.
http://i12.photobucket.com/albums/a2...vving001-2.jpg

that's quite a bit of increase on low end torque
________
Vaporizerinfo

endofanera7 · 01-27-2009, 08:07 PM

I just installed a Pro Dry version of aFe air filter today... On high rpm/speed, with the music off, windows up, I can hear the whistling sound from the engine bay... so it def provides better airflow IMO...

In term of whether my car gain 5whp or not, I have no idea...

MMMorish · 01-27-2009, 08:44 PM

Not that I want to thread jack or anything, but I wonder how well the BMC version will face up to the AFE. I know that the BMC is supposed to fit better but don't know about its performance.

DICKER 1 · 01-27-2009, 08:51 PM

Typically,

What the going price for one of these filters?

Ronin13 · 01-27-2009, 09:26 PM

Thanks TLEE! Great to see an independent dyno.

I new that charcoal element in the stock filter was holding us back.

imballin2day · 01-27-2009, 10:16 PM

Quote:

Originally Posted by DICKER 1

Typically,

What the going price for one of these filters?

About $85 shipped.

spyderco10 · 01-27-2009, 10:27 PM

Quote:

Originally Posted by MMMorish

Oh wow! 7whp and 5wtq is pretty impressive indeed for just a filter!

So it's about as advertised

TLEE · 01-28-2009, 01:56 AM

Quote:

Originally Posted by MMMorish

Not that I want to thread jack or anything, but I wonder how well the BMC version will face up to the AFE. I know that the BMC is supposed to fit better but don't know about its performance.

I don't have fitment problem with the AFE.

MrHarris · 01-28-2009, 02:51 AM

Quote:

Originally Posted by TLEE

I don't have fitment problem with the AFE.

Diamond Bar ftw!

BimmerRob08 · 01-28-2009, 06:03 AM

Data is convincing. I sure would like to see a dyno test of an all OEM M3 (filter/exhaust) compared to one with a AFE filter and Remus or Eisenm. Exhaust combined. If number crunching is close then it should be about a
15hp gain? Does that sound about right?

Nucking Futs! · 01-28-2009, 11:47 AM

Quote:

Originally Posted by endofanera7

I just installed a Pro Dry version of aFe air filter today... On high rpm/speed, with the music off, windows up, I can hear the whistling sound from the engine bay... so it def provides better airflow IMO...

In term of whether my car gain 5whp or not, I have no idea...

Yep, I got the pro dry version as well since I'm too lazy to clean & re-oil the other version LOL! I completely agree on everything you said.

TLEE · 01-28-2009, 01:30 PM

Quote:

Originally Posted by MrHarris

Diamond Bar ftw!

Yes, MrHarris, Diamond Bar neighbors.
Sorry to read your threads about your M totaled earlier this month but glad you are OK.
Can't wait to see your 09 M 3.

01-27-2009, 12:20 PM	#1
TLEE new member 5 Rep 18 Posts Drives: 2008 E90 M3 Join Date: Dec 2008 Location: Diamond Bar, CA iTrader: (0)	AFE air filter?? Should I change my stock air filter to AFE? 5-10 HP increase? 1-2 HP increase? Someone said Leave that intake system OEM. AFE does nothing (or worsens it). Anyone else feel the difference? Good or bad. Edit: Add Dyno result http://i12.photobucket.com/albums/a2...vving001-2.jpg Last edited by TLEE; 01-27-2009 at 03:44 PM.. Reason: Add Dyno result
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01-27-2009, 12:26 PM	#2
ChitownM3 Lieutenant 28 Rep 487 Posts Drives: 2001 SS Camaro Join Date: Jun 2007 Location: Burbs of Chicago iTrader: (0)	I got it, can't say that I feel a difference. But would one be able to feel a 5hp difference anyways? I don't think so. It increases airflow, so I'm sure it won't hurt.
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01-27-2009, 02:18 PM	#4
AbaundvrM3 Serving the US in Germany 2 Rep 37 Posts Drives: '08 Alpine White M3 Join Date: Nov 2008 Location: Germany iTrader: (1)	I like my oiled one and I recommend it...its a cheap mod that should give you 3-5 hp. Anything to let the car breathe easier/better is a good mod especially since its cake to install and I'll be honest with you, the car felt like it had a lil more punch. __________________ '08 BMW Alpine White M3 '08 BMW Space Grey X5
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01-27-2009, 03:00 PM	#5
TLEE new member 5 Rep 18 Posts Drives: 2008 E90 M3 Join Date: Dec 2008 Location: Diamond Bar, CA iTrader: (0)	I have an RD Sport axle back installed on my E90 M3 with AFE dry filter and since the installed I felt loose torque on low end, so I put the stock air filter back. Will the AFE air filter loose low end? I could not wonder this mystery out of my mind. Last Friday I found a decent local tuner shop with Dyno machine and they are Forum member friendly, give discounts to Forum members. (G-Dimension, James, 626-839-3777 City of Industry CA) I was running the OEM filter in the car and took the AFE filter with me. After few run with OEM filter, the shop let me swap to AFE filter to make a comparison, below is the Dyno result. All and all, I was quite surprise to see the low end torque increase; I guess my butt Dyno was wrong. Note: Blue line is run with OEM filter. Red line is run with AFE dry filter. http://i12.photobucket.com/albums/a2...vving001-2.jpg Last edited by TLEE; 01-27-2009 at 03:42 PM..
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01-27-2009, 03:55 PM	#7
psuwcc112 Major 444 Rep 1,061 Posts Drives: 2015 YMB M4 coupe Join Date: Apr 2008 Location: Dublin, CA iTrader: (7)	TLEE, Those are some solid number on the inprovment. What kind of exhaust do you have on in the dyno. __________________ 2015 F82 YMB M4 (Feb 28th ED, re-deliveried on Apr 18th) \|My 2015 YMB M4 ED Journal 2008 E92 SSII M3 Coupe (Sold) \| My long gone 2008 E92 SSII M3 2002 E39 SG 530i (Gone)
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01-27-2009, 04:56 PM	#9
MMMorish Just call me J.J. McClure 156 Rep 2,834 Posts Drives: E92 M3 & C4 Corvette Join Date: Sep 2008 Location: Toronto iTrader: (5)	Oh wow! 7whp and 5wtq is pretty impressive indeed for just a filter! __________________ MODS: Meisterschaft GT Racing Exhaust / BMC Air Filter / UUC SSK & DSSR (Modded)/ RPI Scoops / Passport SRX Hardwired / Custom Wrap 3M Clearbra / 20% Tint / 50% Windshield Tint / Key Hole Delete / Matted Out Accessories / VRS Type II Diffuser / Smoked Reflectors / Euphoria 6K LED Interior Lights / Rear Fog Light Mod / 6000K HID's / 6500K LUX H8 Angel Eyes / RDash License Plate LED Kit / LED Xenon Reverse Lights "M3 drivers have no friends"
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01-27-2009, 06:15 PM	#10
Kadarin Ambassador of Crunk 17 Rep 606 Posts Drives: SG/blk '08 E92 M3 Join Date: Apr 2008 Location: San Jose, CA iTrader: (0)	I can't think of any reason why less restriction in the airflow would cause a reduction of low-end torque. An increase in total airflow (in either the intake or exhaust) at the expense of velocity might, but velocity rather than airflow restriction is the key there.
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01-27-2009, 08:07 PM	#12
endofanera7 Major General 514 Rep 5,392 Posts Drives: 08 JB E92 M3 Join Date: Sep 2008 Location: Bay Area, CA iTrader: (16) Garage List 2018 Porsche GT3 [9.50]	I just installed a Pro Dry version of aFe air filter today... On high rpm/speed, with the music off, windows up, I can hear the whistling sound from the engine bay... so it def provides better airflow IMO... In term of whether my car gain 5whp or not, I have no idea...
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01-27-2009, 08:44 PM	#13
MMMorish Just call me J.J. McClure 156 Rep 2,834 Posts Drives: E92 M3 & C4 Corvette Join Date: Sep 2008 Location: Toronto iTrader: (5)	Not that I want to thread jack or anything, but I wonder how well the BMC version will face up to the AFE. I know that the BMC is supposed to fit better but don't know about its performance. __________________ MODS: Meisterschaft GT Racing Exhaust / BMC Air Filter / UUC SSK & DSSR (Modded)/ RPI Scoops / Passport SRX Hardwired / Custom Wrap 3M Clearbra / 20% Tint / 50% Windshield Tint / Key Hole Delete / Matted Out Accessories / VRS Type II Diffuser / Smoked Reflectors / Euphoria 6K LED Interior Lights / Rear Fog Light Mod / 6000K HID's / 6500K LUX H8 Angel Eyes / RDash License Plate LED Kit / LED Xenon Reverse Lights "M3 drivers have no friends"
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01-27-2009, 08:51 PM	#14
DICKER 1 That Dr. DICKER to You 4 Rep 141 Posts Drives: 11.5ZCP Coupe'/ /Ducati's Join Date: Nov 2008 Location: Warm & Wett Newport Coast iTrader: (0) Garage List 2008 m3 [0.00]	Typically, What the going price for one of these filters?
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01-27-2009, 09:26 PM	#15
Ronin13 First Lieutenant 21 Rep 362 Posts Drives: E92 M3, RRS Supercharged, S2K Join Date: Jan 2008 Location: STL, MO iTrader: (0)	Thanks TLEE! Great to see an independent dyno. I new that charcoal element in the stock filter was holding us back.
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01-28-2009, 06:03 AM	#20
BimmerRob08 Major 110 Rep 1,311 Posts Drives: 2008 M3, Space Gray Join Date: Mar 2008 Location: KIKR (ABQ), NM iTrader: (0)	Data is convincing. I sure would like to see a dyno test of an all OEM M3 (filter/exhaust) compared to one with a AFE filter and Remus or Eisenm. Exhaust combined. If number crunching is close then it should be about a 15hp gain? Does that sound about right?
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