Want to make my own cai

[jrhaile]

What kind of materials do I need? I'm going to use a k&n on the end of for the cone and I want to run it down into my brake ducts like the dinan's ones do but don't want to spend 500 for a dinan. any suggestions on the specs of the piping I should use?

[Furious]

from what i remember you need the cone, to rubber couplings and metal ring clasps (two per rubber coupling) the pipe is your choice to use, either short ram or CAI, you may actually need to use a third rubber coupling to connect two pipes.

[Kevin325i]

You could probably go to a muffler shop and have them bend you a piece of 3" pipe to go down into your duct.

Kevin

[jrhaile]

ohhhh awesome idea....thanks

[Mark31186]

Dont forget in mounting your piping you'll need to remove the horn or mount it someplace else so you can fully extend it behind your bumper

Also making or purschasing a cheap heat shield would be cool too. Even though it would be behind the bumper... hot air might travel down that way. Your choice.

have fun and post some pics on your process. GL man

-Mark

[dutchbmw]

And use a Dremel tool; it will help you by a lot of things.

[skawful]

what if you put insulation around the pipe? or is it just where you get the air from... what would happen if you just had a pipe shooting cold air from the brake duct to the airbox???

[Mark31186]

There are places that sell something like that called a snorkel for the stock air box. Fact is the air box is just CRAP... if you look at the inside of it you'll see what i mean... Just rip the thing outta there and as long as you have a source of colder air such as the hose going behind the bumper or a heat shield.... the performance will be so much better.

-Mark

[Kevin325i]

Originally posted by skawful@May 28 2004, 05:51 PM
what if you put insulation around the pipe? or is it just where you get the air from... what would happen if you just had a pipe shooting cold air from the brake duct to the airbox???

I'm gonna do a write up on this tomorrow. Venting air fromt he brake duct that is.

As for the insulating the pipe, the air is flowing pretty quickly and probably wouldn't become much warmer for the half second it was in the tube. But you could insulate it for piece of mind.

Kevin