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Old 09-23-2009, 11:33 AM   #1
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Question Fernco coupler

Hey does anyone know the dimensions of the Fernco coupler used to be a smoothe bellow. sick of the accordian lookin baffle, saw some dude at the track with a z28 n he said it's worth it.
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Old 09-23-2009, 11:38 AM   #2
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i want to say 3x3... Not 100% sure though. I tried this one time and didnt have alot of luck getting it to fit. Some say its easy and worth it some say its hard on the lid and might crack it. If end up doing it i will find a more flexable type of rubber to use.
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Old 09-23-2009, 01:42 PM   #3
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That coupler is known to crack lids, as soon as you put either a aftermarket (90mm TB on, you go back to accordian coupling anyways).

Its great for looks and that is about it.
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Old 09-23-2009, 01:44 PM   #4
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I picked up a smooth bellow for $25 shipped from the classifieds, check there for a good deal
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Old 09-23-2009, 09:07 PM   #5
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You can get knock off SLP bellows on ebay for about 25 bucks. I like my fernco, it was cheap and hasn't damaged my lid. It should be a 3x3.
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Old 09-23-2009, 10:14 PM   #6
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I have the fernco on my car and haven't had a problem with it
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Old 09-24-2009, 06:44 AM   #7
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Based on what I have seen from your mods you probably wont, start making 400+ and thats when they show up, its a fact. Be aware.
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Old 09-25-2009, 11:18 PM   #8
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i tried it... it's a piece of **** so i took it off fairly quickly... good thing it was only like $4
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Old 09-26-2009, 12:31 AM   #9
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Quote:
Originally Posted by BlackScreaminMachine View Post
That coupler is known to crack lids, as soon as you put either a aftermarket (90mm TB on, you go back to accordian coupling anyways).

Its great for looks and that is about it.
I have a buddy with a 92mm tb and had the slp bellow
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Old 09-26-2009, 01:07 AM   #10
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I would leave it alone, or buy a used SLP one...
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Old 09-26-2009, 01:12 AM   #11
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Fernco is junk. You can get silicone hose on the internet for >$20 that fits better, works better and actually looks good.

Here's mine from intakehoses.com:
Click the image to open in full size.
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Old 09-26-2009, 01:12 AM
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12, 14, accordion, bellow, colored, coupler, couplers, coupling, couplings, fernco, firebird, ls1, red, smooth, tsp, turbo


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