BMC Air Filter

OneMmmm · 06-08-2015, 11:42 PM

Just received my filter from Joe @ Trinity Autosport. Great customer service, which got this little mod off to a great start.

Install was simple with one little concern - the filter doesn't seem to be 100% flush with the intake manifold. Curious to hear if others with this filter noticed the same thing. It doesn't appear to be an issue, as the car runs smoothly post-install.

The sound is great. The difference isn't earth shattering, but it is noticeable and it's beautiful. I planned to go for a short drive around the neighborhood, but ended up driving for over an hour.

The placebo effect is strong here. While I doubt there are any noticeable power gains, the sound tries to convince you otherwise. The filter I replaced was also quite dirty (even with less than 7,000 miles), which very well may account for a slight performance increase.

So far, I'm very pleased. I'll share more over the next week or so, as well as post some photos. Need to finish detailing the engine bay first

White 13 · 06-09-2015, 12:09 AM

By not being flush is there a gap that unfiltered air can get in? I am not familiar with the setup.

OneMmmm · 06-09-2015, 12:13 AM

Quote:

Originally Posted by White 13

By not being flush is there a gap that unfiltered air can get in? I am not familiar with the setup.

Forgive the poor quality photos and the dust, but you should be able to see how the filter sits flush in the top of the photos and pokes out slightly at the bottom.

I don't believe there are any gaps, but I expected a better fit.

yangin · 06-09-2015, 04:53 AM

Yep I have the same slight problem. It doesnt fit quite as snug as oem. I wouldnt worry about it

Power wise I couldnt feel any difference but it does sound much better definitely

OneMmmm · 06-09-2015, 07:20 AM

Quote:

Originally Posted by yangin

Yep I have the same slight problem. It doesnt fit quite as snug as oem. I wouldnt worry about it

Power wise I couldnt feel any difference but it does sound much better definitely

Thanks for chiming in. Gives me some peace knowing I'm not alone

Longboarder · 06-09-2015, 01:48 PM

nice. i did this on my Turbo S can't even believe what it cost tho.

OneMmmm · 06-09-2015, 10:38 PM

Quote:

Originally Posted by Longboarder

nice. i did this on my Turbo S can't even believe what it cost tho.

My curiosity got the better of me. Looked it up. Wasn't as bad as I was expecting, but definitely not cheap.

How do you like it?

Longboarder · 06-10-2015, 12:36 PM

Quote:

Originally Posted by OneMmmm

My curiosity got the better of me. Looked it up. Wasn't as bad as I was expecting, but definitely not cheap.

How do you like it?

Not sure it did anything but it looks cool sitting in the carbon fibre intake.

Maybe some sound...more hisssssss as the turbos spool.

I'm at 30psi midrange and not sure the stock intake was restrictive at all.

heartcolorgrey · 07-01-2015, 12:12 PM

Just pulled the trigger on this after reading forums.

Anyone know if NYS emissions will pass?
For some reason the manuf. says off-road and race use only??

I can't imagine them caring about a drop-in filter.

thekurgan · 07-01-2015, 01:41 PM

Quote:

Originally Posted by heartcolorgrey

Just pulled the trigger on this after reading forums.

Anyone know if NYS emissions will pass?
For some reason the manuf. says off-road and race use only??

I can't imagine them caring about a drop-in filter.

Probably because they don't filter all that well.

06-08-2015, 11:42 PM	#1
OneMmmm Lieutenant 141 Rep 561 Posts Drives: E92 M3 Join Date: Jul 2011 Location: Southwest iTrader: (0)	BMC Air Filter - Initial Thoughts Just received my filter from Joe @ Trinity Autosport. Great customer service, which got this little mod off to a great start. Install was simple with one little concern - the filter doesn't seem to be 100% flush with the intake manifold. Curious to hear if others with this filter noticed the same thing. It doesn't appear to be an issue, as the car runs smoothly post-install. The sound is great. The difference isn't earth shattering, but it is noticeable and it's beautiful. I planned to go for a short drive around the neighborhood, but ended up driving for over an hour. The placebo effect is strong here. While I doubt there are any noticeable power gains, the sound tries to convince you otherwise. The filter I replaced was also quite dirty (even with less than 7,000 miles), which very well may account for a slight performance increase. So far, I'm very pleased. I'll share more over the next week or so, as well as post some photos. Need to finish detailing the engine bay first
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06-09-2015, 12:09 AM	#2
White 13 Second Lieutenant 46 Rep 266 Posts Drives: A 2013 Alpine White E92 Join Date: Oct 2012 Location: N Cal iTrader: (0)	By not being flush is there a gap that unfiltered air can get in? I am not familiar with the setup.
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06-09-2015, 04:53 AM	#4
yangin Private First Class 31 Rep 143 Posts Drives: M3 Join Date: Mar 2014 Location: Sydney iTrader: (0)	Yep I have the same slight problem. It doesnt fit quite as snug as oem. I wouldnt worry about it Power wise I couldnt feel any difference but it does sound much better definitely
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06-09-2015, 01:48 PM	#6
Longboarder Major General 3688 Rep 6,801 Posts Drives: 2016 BMW i8 Join Date: Dec 2006 Location: Monarch Beach iTrader: (1) Garage List 2012 BMW e92 M3 [0.00] 2021 BMW X5M [10.00] 2015 Porsche 991 Tu ... [10.00] 2015 Porsche 991 GT3 [10.00]	nice. i did this on my Turbo S can't even believe what it cost tho. __________________ Current BMWs: 2022 X5 40i, 2013 X5 35i 2015 Porsche 991 Turbo S 1979 Porsche 911 Turbo (930) a couple others IG: longboarder949; YouTube: https://www.youtube.com/channel/UCT1...eoFBszPIK0gf9w
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07-01-2015, 12:12 PM	#9
heartcolorgrey Private First Class 11 Rep 140 Posts Drives: '13 ZCP AW/Speed Cloth Join Date: Nov 2012 Location: NY iTrader: (0)	Just pulled the trigger on this after reading forums. Anyone know if NYS emissions will pass? For some reason the manuf. says off-road and race use only?? I can't imagine them caring about a drop-in filter.
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