I have a question and im sorta stuck in the middle, Im doing a complete exhaust set up on my 91 z28 single cat and I have everything i want except I cant find a good cat, Im going with the Edelbrock 68722 headers from summit with a 2.5 inch Y pipe the cat back i am going with is the MagnaFlow 16829 also on summit which is with the 3 inch intermid pipe... Now my only problem is finding the right cat and of course i need it to pass smog for the fact I am in cali which sucks but I was wondering if you guys had any suggestions. Any would be great and any suggestions would be greatly appreciated

 

I am going to run the Magnaflow 94019 universal 3" cat w/ oxygen tube.

I am not sure if it's 50 state legal though, I think its only 49 state.

From what I have been reading Magnaflow/carsound catalytic coverters are the better flowing cats.