hey its dumbass again with another question! yay!

I been thinking about my Apexi WS exhaust and looking under the car a little. It appears the WS comes with a high flow catalytic converter. I'm not positive and can't find it online that a cat-back exhaust comes with a cat. seems like a stupid question I know, but if it does come with a high flow cat, then should I/can I take out the stock catalytic converter? Because it seems a little overkill to have two converters, and probably is robbing me of a bit of power. I wonder if it is giving me torque tho with the added backpressure?

Anyone know if this is bullcrap or not? or WS owners, does it come with a cat? any info on the repercussions of removing my stock catconverter would be much appreciated.

I am not a Apexi WS expert, but I am willing to bet this isn't true. If you saw the cat-back and saw something that looks like a Cat, you probably saw the Resonator, which is usually around 15" long I have noticed on import cat-backs. I can see someone mistaking this for a cat.