Matt D

iTrader: (49)

Alright guys, I searched and found that a lot of guys are using a 4" coupler for their 90mm TB. Well I went to Home Depot and got a 3" to 4" Fernco for my stock MAF, and it fit the stock MAF fine, but the 4" part for the TB was way too big. What is everyone else using with this setup? The stock accordian bellow works, but it is a very tight fit on the TB, and too tight for comfort. Let me know, thanks!

ICRAZY6

iTrader: (68)

Check out racepartssolutions they have the 3"-3.5" and that works the best. Everything from 45* to straights to stepped couplers, they have it all.

Matt D

iTrader: (49)

So the 3"-3.5" is what you have it works good?

Matt D

iTrader: (49)

Well, I tried the 3"-3.5" hump hose from Race Parts Solutions, and it was too short (by 1.5") and the openings were too small.

Anyone else?

ONEBADWS6

iTrader: (22)

When a opening is too small for me I just lube it and stretch it to hell. Works for me but not for the thing being stretched!!! P.S I love you.

99DWPTA

iTrader: (10)

i believe the slp bellow works

Matt D

iTrader: (49)

I tried that, even used KY jelly. No luck

I am going to try that Air Flow Systems company. It's a good thing these things are cheap at $25 a piece

Bryan @ Speed Inc.

iTrader: (19)

i know the old SLP smooth bellows works for sure! i'd imagine the newer style one would work as well.

you know where to pick one up.

Matt D

iTrader: (49)

When they drop down from $65 to $25, let me know

ICRAZY6

iTrader: (68)

Matt D, I'm sorry that it didn't fit. That's what Straightline told me to purchase for my set up. Will they take the bellows back or are you going to sell it? Once again sorry.

Matt D

iTrader: (49)

I emailed Darin at Race Parts Solutions and he said they will take it back. It's no big deal. The car sits during the week anyway. I drove it last night and got pulled over right away. Cops...

mzoomora

iTrader: (36)

I used a piece from Home Depot and it works ok. I had to tighten it up a bit but it is a smooth transition.

Matt D

iTrader: (49)

I just ordered a 3.5" to 4" ID from Air Flow Systems. It has a total length of 5" compared to the 2.5" piece of **** from Race Parts Solutions. It should work.

INMY01TA

iTrader: (1)

I use stock bellows. Fits the NW fine for me.