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rmcrom
10-30-2009, 06:30 AM
Since I haven't been able to decide which CAI I want for my G8, I decided to make a DIY air silencer delete. I'm a fan of the un-modified look, so that was my motivation for this project. Here's how I did it:

The materials used were
- 90 degree mandrel bent 4" diameter aluminized steel pipe with 12" legs
- 4" ID hump coupler
- 4" to 3.5" 45 degree bent reducing coupler
- 3/8" barbed fitting
- hose clamps
- recycled hard plastic pcv line from when I installed my catch can
- paint

First thing I did was remove the air silencer and put in the couplers so I could see how to cut my pipe to length. After cutting it and making sure it fits, I drilled a hole and put in the barbed fitting. With the barbed fitting in it was ready for paint. I used some flat black header paint which I don't really think is needed for the amount of heat this pipe will see, but I like the finish you get with it. Here's how it looked once dry.
http://i587.photobucket.com/albums/ss319/rmcrom/002-2.jpg

And with the couplers.
http://i587.photobucket.com/albums/ss319/rmcrom/003-2.jpg

Now to get it in the car is slightly tricky because the 4" to 3.5" 45 degree bend coupler is a b***h to get on. Once you get it on the maf it gets easier. Once I got the pipe into the maf coupler I put the hump coupler all the way onto the other end and rotated it into position at the TB. From there it was easy to just slide the coupler down the pipe and onto the TB. Make your final adjustments with positioning and tighten the clamps. For the breather tube I didn't get a long enough piece of 3/8" hose because I'm cheap and tried to buy what I thought was the minimum amount I would need so I recycled my hard line from the PCV system. To attach to the barbed fittings I used couplers made out of my 3/8" hose. And that's all there is to it. Total cost was about $80 and it makes the car sound better. Here's some pics.
http://i587.photobucket.com/albums/ss319/rmcrom/004-2.jpg

http://i587.photobucket.com/albums/ss319/rmcrom/005-1.jpg

http://i587.photobucket.com/albums/ss319/rmcrom/006-2.jpg

http://i587.photobucket.com/albums/ss319/rmcrom/007-2.jpg

Chewy
10-30-2009, 06:41 AM
WOW looks great!

Chris

StandFast85
10-30-2009, 06:41 AM
That looks great. The best DIY intake I've seen!

Tjay74
10-30-2009, 06:54 AM
I have to agree, that is the best one i have seen yet including the yt rubber intake elbow that is way overpriced.

rmcrom
10-30-2009, 07:01 AM
Thanks, I'm happy with the way it turned out. I forgot to mention that in the pics it looks a little brown, but it is black in person.

conipc
10-30-2009, 09:06 AM
or, just buy a Yella Terra tube :)

BigRed585Lbs
10-30-2009, 09:22 AM
I do find that attractive. Good job.

rmcrom
10-30-2009, 10:08 AM
or, just buy a Yella Terra tube :)

The cheapest one I've seen is still $50 more than what I made.

R.Penguin
10-30-2009, 11:28 AM
The cheapest one I've seen is still $50 more than what I made.
Oh, Oh,.....wait!

I have another brilliant mod idea! My CAI using that white plastic spring tubing for clothes dryers will perhaps eclipse the world famous $66 exhaust mod! :rofl:

rmcrom
10-30-2009, 11:58 AM
What is the $66 exhaust mod?

R.Penguin
10-30-2009, 01:16 PM
What is the $66 exhaust mod?
OH, no! :p

gearhead455
10-30-2009, 05:48 PM
Sweet!!!,good job.

GeoffA
10-30-2009, 05:51 PM
What is the $66 exhaust mod?

:rofl:

Don't ask, but my $38 exhaust mod was cheaper!

Posidon42
10-30-2009, 06:12 PM
I just wish I could find 4" silicone couplers that don't also have a 4" turn radius. I really don't want to go to the aluminized steel route. Though yours looks very nice.

rmcrom
10-30-2009, 06:35 PM
What do you mean 4" turn radius? Are you making the whole intake out of silicone?

Posidon42
10-30-2009, 07:24 PM
That is the plan. I plan to use a coupler between the 90 degree bend and the intake, then a separate adapter on the other end that narrows down to the 3.75" needed for the MAF. The only reason I haven't done it yet is because I am fairly sure the coupler is too tight of a bend to actually fit. These DIY mods are still inspiring though.

kyllekkc
10-30-2009, 10:08 PM
nice intake