hey i have a 95 lude with RSR exmag.. (2.25").. and i want to buy a high flo cat but dont want to spend the big bucks.. so il ljus get a test pipe.. (high flow cat on ebay). I went searching on eb ay and the only high flos i culd find were 2.5" inlet and out let" will this FIT?

 

up for alitle hlep

WHY IS RSR 2.25

 

actually, the rsr is 60mm which is 2.36"

but if you search ebay more you there are 2.25" cat's that'll work fine. But then it depends on what kind of header you have to help determine the inlet size.


Here's a carsound 2.25" cat, but you have to get the flangles welded on at a shop:
http://cgi.ebay.com/ebaymotors...33629

I saw one that let you choose the specific size you'd like but i can't find it now...