installing cat

[Guest]

Well I have my carsound cat but can deceide how to install it. The stock cat has a metal bracket that appears to be bolted to the old cat or something, and then the spipe. Should I chop the Spipe off and weld it to the new cat and then what to do with that bracket thing? Anyone done this?

[grayman]

um, I think the stock system is a welded cat on both ends. I don't remember a bracket. The stock s pipe has a band clamp to the mid pipe, though.

Are you just changing the cat? 3" to 2.25"?
If so, on mine...with the welded cat...cut the cat at the y pipe right up close to the cat weld line as possible. You new 3" in cat will slip over the y pipe. YOu can clamp it with u bolt and weld later if you like. (i like clamp...if cat goes bad I can just take it off rather than loose meat of the Y pipe everytime I need to cut it off)

Next, the 2.25" out collar of the cat will slip over the stock s pipe...do the same there and cut the cat off the s pipe as close to the weld line as possible.

[Guest]

M addingheaders so the pipe connection is fine, its the other end im worried about. The new cat is 3inches in (match headers) and 3inch out. So that stock spipe is 2.25? Maybe ill have a shop make one thats 3inches. Thanks for the input.

[RallyRed 98]

the exhaust system design varies from year to year. stock exhausts have a bracket (attached to the rear of the cat) that mounts to the transmission x-member... that's why your exhaust seems to change note when you add a stiffer transmission mount.

a shop will probably make something that goes 3", fill with weld to 2.5", fill with weld to 2.25". not a very sweet way to do it but there isn't much other choice unless you go to a full 3" exhaust.

[BLLDOGG]

yes, your pipe is 2.25 so you'll need a reducer. nothing a shop cant do cheap

[Guest]

ok thanks ill just let them make the whole intermediate pipe