2nd Generation Specific (1986-1992) 1986-1992 Discussion including performance modifications and technical support sections.
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Air Intake Box

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Old 12-22-09, 03:10 PM
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CA Air Intake Box

I,m looking for a Good air intake system for a 87 s4 t2, does anyone out there have any ideas, I've seen a few but I dont know who makes the best system and where you can get them .
Old 12-22-09, 03:31 PM
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Are you talking about the turbo inlet duct? theres 2 things you can do 1 just find a 45* 3" bend and some couplings and make your own. You will need to plumb in the spot for the vacuum line and a big spot for the stock bov if you keep it. or you can buy an aluminum replica of the original from corksport. I just did the 45* bend being it cost about 20 bucks in all, but you will need a dremel or somthing to do the holes.
Old 12-22-09, 03:54 PM
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Be sure and get CARB approved K&N or HKS if you don't want any smogging hassles.
Old 12-22-09, 04:14 PM
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Im not talking about the ducting, what i'm after is the Box it self, I've seen some aluminum boxes that are trick, and fit with front mounted intercoole piping, I have the corksport meatl inlet duct and I like it but what I want is the box that the air filter fits in .
Old 12-22-09, 04:42 PM
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http://www.mariahmotorsports.com

$120 if you don't want to fab yourself.
Old 12-22-09, 04:50 PM
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Mmmmmmm Mode Six Bodykit.....
Old 12-22-09, 05:50 PM
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Originally Posted by texFCturboII
Mmmmmmm Mode Six Bodykit.....
I've contiplated it, but I couldn't imagine buying 18x12" wheels.

Imagine the price for some ballin CCW's!
Old 12-22-09, 07:54 PM
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I went with the Mariah set up

Pictures

I came into the "box" from a different angle than most as I have custom piping from the Turbo. The box has markings for where to cut the hole in a standard install. Regardless, as pictured in the first photo, I recommend you do a test run cut on cardboard to confirm correct hole placement before you actually cut the Mariah piece.

I used the CARB approved K&N intake filter.
Attached Thumbnails Air Intake Box-088.jpg   Air Intake Box-089.jpg   Air Intake Box-090.jpg   Air Intake Box-091.jpg   Air Intake Box-093.jpg  

Old 12-22-09, 08:41 PM
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^this is ideal, and you should try to replicate it if you are capable (or feel like) fabricating it yourself.
Old 12-23-09, 12:12 AM
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Originally Posted by HOZZMANRX7
Pictures

I came into the "box" from a different angle than most as I have custom piping from the Turbo. The box has markings for where to cut the hole in a standard install. Regardless, as pictured in the first photo, I recommend you do a test run cut on cardboard to confirm correct hole placement before you actually cut the Mariah piece.

I used the CARB approved K&N intake filter.
This is simular to the way I'm doing it. Other then mine comes from the center of the engine bay. Because of you know.

I just like the idea of it being a nice solid piece that isolates the air intake. I always wanted to buy it when I was still rotary powered.
Old 12-23-09, 10:38 AM
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You mean like this? If capable, a custom fabbed box is the way to go. It's not really white; just very reflective polished aluminum.

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