Is there a catalytic converter flow comparison chart around?
Cats tend to fail on me more from banging them on a speed bump, so cheap is generally better than getting 4 more HP from a cat costing triple or quadruple the price.
I've even thought of running two in parallel on each side

Lets see, that would be (436.7 x 4) =1746.8 cfm / 2.2 = 794 hp that could be supported. Actually thats only the 2.5" carsounds...I wonder how much better the 3" flow.
Your kidding right.
If that reasoning was correct, that would mean we could run two chokemasters in tandem to equal the flow through one magnaflow.
The flow through your cats is not additive. If it was I'd have like 20 cats, one every 2 inches, from my y-pipe to my muffler tips. Trending Topics
(see attached pic).
Also, the test does not show which carsound cat was tested. If you go to their (magnaflows) site, they have many models. I see some cats for 450+ cubic inches.
D
Last edited by ROCNDAV; Sep 27, 2005 at 12:37 PM.
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When I looked at my cats, both sides were welded like the red circle. I think I might just hit the I.D. with an air grinder




