does anyone know the size of the coupler I need to replace the original coupler that connects to the Y-pipe? Im trying to order one right now and I have no idea what size it is.

 

I believe it's 2 3/4" (2.75) diameter x 3" long.

 

^^ correct sir!And that is the inner diameter that was stated. That is what you tell the person. I reccomend www.hightempsilicone.com

He has great prices and quality is way above anything else out there.
just tell him you need a 2.75"X3" with clamps. He will hook you up.I am about to place a big order with him again. about 3 cars worth of couplers and clamps

 

Wow, that place isn't cheap!!

It would cost a couple hundred plus in couplers and clamps to do the FD right.

The piping would be the cheap part.

 

Well i guess if you think 10 bucks for a coupler is exspensive then i guess so. But you'll get what you pay for with the cheaper couplers.
I can almost garuntee that they will never need to be replaced again unless you rip them or want a different color. Plus his clamps will never rip into the couplers like greddy's and all the others.

my single turbo is going to cost me about 80-100 for couplers and clamps. That i know wil last and stay tight.That's 6 couplers and clamps. estimated.

 

T-bolts are on sale for $2.90/ea. The 2.75" ID couplers are normally $7.75/ea but black is overstocked and are only $5.00/ea. Where can you find SAEJ20 couplers and T-bolts less than that?