y-pipe diameter?

[SuperHO]

I'm gonna wind up popping the cats off, but i can't find what diameter the piping is for the cats on the y and the 3rd cat. Anyone got these numbers for me?

 

[kevinspann]

Looks like 2.25" OD, 2" ID

For both.

 

[Johnlemon]

are you gonna replace the cats? if so please post up the replacement cats you will be using, gotta replace mine.

 

[sperold]

You can go to the website for Eastern Catalytic Converters and they list both the y-pipe information and the cats by themselves.

 

[kevinspann]

Why not just gut the cats. Looking at the design of the y-pipe, it will be easier.

 

[Johnlemon]

so according to the Eastern cat specs this one will fit
http://www.magnaflow.com/02catalytic_converters/02product/displayuniversal.asp?universal=53104
or maybe
http://www.magnaflow.com/02catalytic_converters/02product/displayuniversal.asp?universal=91004
or
http://www.magnaflow.com/02catalytic_converters/02product/displayuniversal.asp?universal=94104

the first one lists the 1st and 2nd gen sho, but not 3rd, will it fit?

 

[kevinspann]

A v-8 y-pipe. The rear cat isn't "universal replacement" friendly.

Easiest thing to do is to gut the stock cats, or buy the catless V8 y-pipe that is for sale in the classifieds.

 

[Johnlemon]

I have to replace the right bank cat, it leaks and is obnoxiously loud
found this
http://www.magnaflow.com/02catalytic_converters/02product/displayuniversal.asp?universal=91074

and will going catless turn up any codes? sorry dont know much about exhaust systems, yet...

 

[SuperHO]

I'm just gonna gut em....but since i don't have access to a welder, I gotta clamp em back together, so.I need to know what size sleeve and clamps to get.