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DIY: Do It Yourself
Post here to share or improve your wrench turning skills! All BMW E46 DIY tips, tales, and projects discussed inside. Learn to work on your car and know the right BMW parts you will need!

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Old 03-21-2012, 10:07 PM   #41
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Join Date: Jan 2012
Location: Londonderry
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My Ride: 04 325xi
Actually, what I did was..

I cut the hole in my air box, and routed the pipe down to my bumper. I took the little "grille" in my bumper, and cut it out a bit, so it was hollow. Will show pics at end of post.
In the bottom of my bumper, it has a mini "grill" where the brake duct is located. To the left and right of that, (depending on the side of the car you're lookign at) there is a piece of grill, that is solid. I cut that away, to make a pathway for the air, and I will be mounting a scoop, from Home Depot or Lowes, like you said, this weekend.



It was a VERY tight fit to get the box back in, and the pipe down there, but I did it. And I can't wait until I get the scoop.

So far the Butt Dyno feels more umph on acceleration.
There is a bit deeper tone in the exhaust now.
And it may be just me, buy going from 65-80 in 5th, feels like I go a bit faster. But that may just be my mind making me think I'm better.
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Old 01-20-2013, 12:47 PM   #42
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My Ride: 03 Imola Vert M3
Can this mod work on an m3?
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Old 01-20-2013, 12:52 PM   #43
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Wow. Cool mod. Never seen this before.

sent from my HTC EVO+ using Bimmer App
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Old 01-20-2013, 12:52 PM   #44
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To be honest, all it will do is add a little bit of sound.
You won't see any power gains, you'll see a slight power loss.

But I would not know, as I'm not sure if an M3's intake is different than a regular 3 series.

I noticed this tube will rust in the wet. Which sucks.
I ended up ripping the pipe out, and just leaving the 3" hole in my airbox.. and well, it sounds a lot louder now.

Last edited by mattfarrington; 01-20-2013 at 12:53 PM.
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Old 03-22-2013, 10:25 AM   #45
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Just drilled my hole a bit ago, getting ready to go find some hose!
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Old 03-31-2013, 01:31 PM   #46
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Originally Posted by Optio View Post
I did this a couple years ago and used Dinan parts. Just call them up and order the third air intake tubing kit. I think it was like $55.00...... Expensive, but it is very factory in fit and appearance. I also used an E36 inline six air filter that is deeper than the E46. I do detect a bump in power from this mod.

The steel flex hose and hacked hole is getto.......I recommend the Dinan approach
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Old 03-31-2013, 01:56 PM   #47
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yeah. no.
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