i have an 89 iroc w/ 305tpi auto.

its single cat and i have the stock exhaust on it right now. i need a new cat so i can pass emissions
i need to find one ASAP.
i am looking at getting a catco cat- high flow 3" cat-

 

You sure it's the cat? Refer to your post in the tech/gen engine board

 

prety sure its the cat--

my car was running ricj ever snice i got her back on the road(after many problems with the igition shes running right agaoin and better than ever. i think i might have clogged the cat or messed it up because after 5-6 thousand miles i think i might have messed the cat up but i'll also check the o2 sensor and replace it--