does the rx8 only have one main cat, or does it have pre-cats like i do embedded in the exhaust manifold?

ONE HUGE CAT

interesting, thats good b/c you could remove this and replace it later....or just a good high flow, with relative ease...ive got like four cats, two of which are in my exhaust manifold

How fast where you going to get them that far up in your exhaust manifold? LOL

Seriously though, I'm curious as to how sensitive the ECU is to the CAT...would it throw a tantrum if the OE CAT got replaced by a high-flow.