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Need a coupler tube for the 104mm lid to a 90mm TB

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Old 03-26-2011, 10:27 PM
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Question Need a coupler tube for the 104mm lid to a 90mm TB

I'll have no MAF. Lid straight to the TB.

A 4" coupler fits over the FAST TB but that would be 3/8" too small for the lid.

Where do you guys get these couplers because I couldn't find anything matching these specs or even CLOSE to long enough in the Plumbing Department of Home Depot???
Old 03-26-2011, 11:17 PM
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Look on siliconecouplers.com I actually got mine off ebay, and dont worry about that 3/8 the silicone will stretch with a little persuasion.
Old 03-27-2011, 04:07 AM
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Just drilled a 5/8" hole with a Diamond Tile drill bit.
Attached Thumbnails Need a coupler tube for the 104mm lid to a 90mm TB-photo-2-.jpg   Need a coupler tube for the 104mm lid to a 90mm TB-photo-3-.jpg  
Old 03-27-2011, 07:57 AM
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Just ordered mine from intakehoses.com. I had the same concern as you (except I have the 98mm lid). I bought a 4"ID x 6" long. If you aren't in a hurry I can measure the inlet and see if it will fit over the 104mm lid. I should have it sometime next week.
Old 04-20-2011, 03:02 PM
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I tried to stretch that 4" hose over the lid for over half an hour with no success.

I emailed the hose company to see if they can send me one that fits a 4 1/4" or 4 3/8" outer diameter.

This S U C K S
Old 04-20-2011, 03:05 PM
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try setting it in the oven for a little bit. it'll make it more pliable.
Old 04-20-2011, 03:47 PM
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Originally Posted by dutinsss
try setting it in the oven for a little bit. it'll make it more pliable.
I tried microwaving it already. I'll give the oven a try.
Old 04-20-2011, 05:45 PM
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Man I put that thing in the oven on 200* for almost 10 minutes- tried needle nose pliers and a flat head screw driver with no go.

Do I have to cook this thing like a turkey or what?
Old 04-22-2011, 10:27 PM
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i guess if it felt like it could get a little hotter without melting, you could put a little more heat to it. then put a little grease on the ends. if that doesn't work, it's just too small.
Old 04-22-2011, 10:49 PM
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get a bigger tube and use as a coupler with silicon.
Old 04-23-2011, 09:01 PM
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Originally Posted by garygnu
get a bigger tube and use as a coupler with silicon.
Already ordered last week. Should be here Monday.

I'll just wrap around the throttle body if necessary.
Old 07-25-2013, 12:05 AM
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Originally Posted by The Dragon
Already ordered last week. Should be here Monday.

I'll just wrap around the throttle body if necessary.
What coupler did you end up getting?
Old 07-25-2013, 02:58 AM
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I should have it sometime next week.




Old 07-25-2013, 05:22 PM
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Lol I ordered from a site online but canceled when I picked up the longest plumbing tube Home Depot had; perfect diameter and barely long enough but it fits.
Old 07-25-2013, 05:27 PM
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Originally Posted by The Dragon
Lol I ordered from a site online but canceled when I picked up the longest plumbing tube Home Depot had; perfect diameter and barely long enough but it fits.
Is it a fernco? What's the part number? No one makes what I'm wanting.
Old 07-25-2013, 05:40 PM
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Baker's Tube.
Old 07-25-2013, 08:00 PM
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Pic of it
Old 07-25-2013, 08:03 PM
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Are y'all dremeling out a little of the plastic on the lower air box beneath the neck of the airlid to make these work?
Old 07-25-2013, 08:22 PM
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Default coupler

I have a 104mm lid and used a 4 inch coupler, I used a DA ( on the coupler ) and keep grinding away until it would slip on with a little lube. And yes you have to take alittle of the radiator support right bellow the coupler. I bought the coupler from Vibrant Performance

Last edited by M.BOZZ; 07-25-2013 at 08:24 PM. Reason: info
Old 07-26-2013, 09:20 PM
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Originally Posted by Firebirdmuscle
Are y'all dremeling out a little of the plastic on the lower air box beneath the neck of the airlid to make these work?
Didn't dremel anything.



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