I have n2o on my 94z and after installing it in a very short time my cat completely stopped up. I cut the cat off and replaced with a straight pipe and performance is great but it is a little loud for my tastes. It sounds good but I'd like to keep the sleeper profile. Is their any cat conv. that can handle the job without dieing in a month like the stocker?

 

you can try a Random Tech cat. If the fuel mixture isnt right,it will continue to clog up cats. The cat will break down when there is too much unburned fuel burning inside the cat.

 

yea random tech has a high flow cat

i have a ORP =)