I'm assuming there are some high-flow cats that still pass California emissions laws/tests?

yeah thats why i shelled out so much for the system; i had already gotten the comptech exhaust and didn't want to mix it up by getting AEM CAI + OBX header (does OBX even make a header?).

I know the stock cat is a bottleneck and I was considering getting a new cat (after my next paycheck...current setup cost me )

but!

comptech did a dyno run on a gsr with its intake/header/exhaust, measured max 20 hp gain to the wheels. As far as i know the rest of the car was stock, so I'm still be happy knowing these mods should add this much power. :thumbup:

Plus I'm poor and I can't shell out another 200 bux for a high flow cat. The straw of hay that broke the camel's back is a good way to put it.


Had I gotten the CTR intake cam + integra type-R exhaust cam + valve springs, I would most definitely have gotten a high flow cat. But on a stock engine, it should be "satisfactory" for the time being