I am looking to do true duals, but I don't have a dual cat car. I have an 88 IROC.

What I want to do is place two cats side by side where the one is and go the rest of the way. I will be pushing 425+ hp by next summer, when I can finish my engine. I need a good flowing cat that would flow enough for the 4 bank per exhaust tube. Anybody have any ideas?

TIA

 

Summit p/n CTO-6006. "Universal, 14 in. long, 2-1/2 in. diameter slip fit inlet and outlet, stainless steel, catalytic converter." With A.I.R. tube (if that's an issue - plug it if not).

1/4" larger ID than factory dual cats, should flow plenty for your power.

 

I am planning on doing two 2" pipes to dump. I guess I will need to see what the inlet/outlet sizes available are. I don't want to get too big.

Is 14" too long for the area that is there? I figured that would need to be shorter.

Ever heard of a dual inlet/outlet on a cat?

 

http://www.jcwhitney.com/item.jhtml?ITEMID=3872&BQ=jcw2
I have no clue what the pipe sizes are.

If you are really going to produce 425 HP, 2" is probably a bit small.

14" is shorter than the factory cats.

 

Yeah I found that last night, but I wish I knew what size if was. I guess I will call and find out later.

Thanks man!!!

 

Yes, it takes dual 2 1/4 to equal single 3 so dual 2 is probably to small for the kind of power you want to make. I would do dual 2.5.

Ben

 

I think the JCW paper catalog has the pipe sizes for that dual/dual cat, but I don't have one in front of me right now.