Originally Posted by Imprezive

Bee R limiter is pretty much just for wank factor. Yes it will shoot flames and be incredibly loud if you have no cat converter, it will also fuck up your turbo and manifold if your gonna be sitting on limiter all the time.
Usually it works with aftermarket ecu's, just wires into the rpm and ignition signals. I know with the powerfc you need to put a extra ground to the Bee R to make it work.