cold air intake on m30?

[clementine]

is this ok to do or will there be complications

[jim325]

Its ok but it wont actually help if you don't shield the intake from engine heat.

[clementine]

awesome i just wasn't sure if it would affect the computer and its readings and i also need something smaller to replace the original filter piece, cause its so big. and thanks for the tip.

[Bearmw]

You can replace the stock type filter (with something like a K&N) but at the expense of filtration. You won't gain performance but you may gain some extra sound and a bit of extra space though. The stock B35 air box is very good but maybe a larger snorkel on the end could be a benefit with a built motor.

[SkiFree]

Stock is best (in my humble opinion).

[clementine]

thanks for al the advice, but how do manage to fit the stock filter in the engine bay, i can't seem to figure it out

[tfritz]

^^I second that. I could not seem to fit the stock box in there. I thought it had to do with the miller maf setup making the boot to long. I just used some intake pipe, a cone filter, and made a heat shield...

[CorvallisBMW]

I have the miller MAF setup and it fits perfect. You have to remove the windshield washer bottle, or just replace with an iX unit



Also Miller offers various lengths of MAF housings, so you can pick one that is longer/shorter to fine-tune the fitment.

[SkiFree]

thanks for al the advice, but how do manage to fit the stock filter in the engine bay, i can't seem to figure it out

To be honest, I'm not rightly sure.

The car in the picture was built by Ed of Ed's BMW service. He's a pretty friendly guy, I'd assume he'd be more than happy to talk to anybody who called and asked. (626) 653-0191

EDIT: shoot, looks like Corvallis nailed it before I finished typing. Ed's setup is obviously using the Miller MAF as well.

[CorvallisBMW]

Actually IIRC the stock airbox fits better with the AFM than it does with the MAF

[Bearmw]

Like Ski free I used a short adapter coupling between the Miller MAF and the rubber elbow to the air box. I am still looking at a good way to hold the air box more securely although it really doesn't move much. Just a little finishing detail.

[clementine]

hmm thanks. ill keep trying, it would be nice to fit the original setup

[tfritz]

CorvallisBMW...i think i had an extra spacer or something on the intake side of the MAF, must be my issue

[Bearmw]

My take... I cut out part of the grill to allow more air in
the larger diameter non-tapered trumpet

[mcskibadee1]

I have mine behind the valance getting fresh air from the brake cooler.