and dont flame me for being the 50th one to ask the question... i dont have time to go on here and go through 78 pages

 

No 2.25 in 2.25 out

 

everything that i see is opposite of that

 

Explane your talking about a jeep xj stock cat right

 

Why don't you measure it?
It is 2.25 ID outlet, and I'm pretty sure it is 2.5 inlet.

 

What adapters am ima need from AutoZone to get off the stock cat to a 2.5in

 

wat

 

like adapter pipe size to get from the 2.25 outlet of the cat to the inlet of the 2.5in muffler

 

The cat is 2.25od. You would need 2.25ID to 2.5(OD or ID, measure your muffler).

 

editted......

 

this is what i thought it was... thanks

 

Measure it to be sure. 2.5 and 2.25 aren't really that much different. 2.5od and 2.25id are very similar.

 

will do

 

I just have to say this! I read every post here, and feel totally well educated enuff to throw on a new cat and weld me on a new flowmastster super aggressive 44 or better! shoulda read this thread ummm like yesterday! Before going to muffler shop this afternoon!! FML! But my baby sounds viscious! ;-)

 

That's y I started this thread.