High-Flow Cat w/ 3" Cat Back

[KBeezy]

So I've never done a high flow cat before. All my previous cars like this one were/are OBD1 and when I drove them (The Probe GT Turbo & Firebird Formula WS6) shops didn't care about taking off the cat and welding in a straight pipe for me.. Now nobody will do it [img]graemlins/stickpoke.gif[/img]


So I'll just be doing a high flow cat converter but what I want to know is if I get a 3" high flow cat with a 3" inlet and 3" outlet how much of a pain in the *** is it going to be to hook up to the stock exhaust on the inlet side? I plan on getting a set of headers sometime down the road this year but I want to know if I should just wait or what. I already have to replace the flange on my stocker and I have a feeling that after 125000 miles the stocker wont last much longer anyways...

[cboney2003]

I know that on the 3.8's that the inlet pipe to the cat is 3" stock and the outlet is 2.25", not sure about the 3.4's but if you have a 3" inlet to the cat, the highflow and 3" catback should go right on!

[99W68Firebird]

just go all out and get the headers and y-pipe with 3" outlet then you will be fine [img]smile.gif[/img]