Cant find a smooth TB coupler anywhere!?!
Thread Starter
Senior Member
Joined: Nov 2011
Posts: 507
Likes: 1
From: Charlotte, NC
Car: 1988 IROC-Z Camaro, 1981 Trans Am
Engine: 350 TPI, 301 N/A
Transmission: 700r4, 350thm
Cant find a smooth TB coupler anywhere!?!
Id like to replace my TB coupler with a smooth one. I have an '88TPI with the maf too. It increases airflow yes, but also looks better and my current one has/is developing cracks so its time to go. Ive checked autozone, advance auto, pepboys, even ebay! I cant find them anywhere! I read that they dont make them oval like the TB, you have to buy a 4in circular coupler and "mold" it to form and it'll fit. Nobody has any 4in couplers! lol anyone know where to get one? Im not looking for the most fancy one either.
Thanks
This is what it looks like. The red silicone part on the TB. Thanks again
http://i7.photobucket.com/albums/y30...20TA/007-2.jpg
Thanks
This is what it looks like. The red silicone part on the TB. Thanks again
http://i7.photobucket.com/albums/y30...20TA/007-2.jpg
Senior Member
Joined: Mar 2012
Posts: 553
Likes: 1
From: Ballwin, MO
Car: 1987 Trans Am
Engine: 355 tpi
Transmission: 5 speed
Re: Cant find a smooth TB coupler anywhere!?!
You need to check ebay again, I just did a search and found one for 14.99 + shipping of 5.99 . summit and jegs also have them plus some better things that flow alot better than what you're looking for and looks better IMO than what your looking at.
Senior Member
Joined: Mar 2012
Posts: 553
Likes: 1
From: Ballwin, MO
Car: 1987 Trans Am
Engine: 355 tpi
Transmission: 5 speed
Re: Cant find a smooth TB coupler anywhere!?!
check out jegs performance products Part #555-57031 its listed for a lt1 in the fuel injection category And list for $80.00 And I think it would make a clean and cool engine compartment.
Re: Cant find a smooth TB coupler anywhere!?!


your might want to check a good plumbing supply, rubber 4" to 3" adapters are just not that expensive
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iTrader: (1)
Joined: Feb 2010
Posts: 467
Likes: 6
Car: 85 Trans Am
Engine: 98 Vortec 350 LT1 Cam w/ TPI
Transmission: T56
Axle/Gears: 9 bolt 3:27
Re: Cant find a smooth TB coupler anywhere!?!
Kinda weird seeing a pic of my old engine. But yeah I got it as a kit but all it is is a 4" to 3" coupling as shown above. The full kits are all over ebay and they have the setups for MAF cars as well.
Thread Starter
Senior Member
Joined: Nov 2011
Posts: 507
Likes: 1
From: Charlotte, NC
Car: 1988 IROC-Z Camaro, 1981 Trans Am
Engine: 350 TPI, 301 N/A
Transmission: 700r4, 350thm
Re: Cant find a smooth TB coupler anywhere!?!
Lilski: Thats yours? Haha I could imagine that would be kinda weird. Thats a very nice 2nd gen btw!!
But I tried one of those adaptors and its too short; Im using the stock "Y" intake on my Camaro and those couplers are about 1-2in short IIRC. Does anyone know of any that fit the stock "Y" intake?
But I tried one of those adaptors and its too short; Im using the stock "Y" intake on my Camaro and those couplers are about 1-2in short IIRC. Does anyone know of any that fit the stock "Y" intake?
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