Has anyone fitted one? If so what was done about the speed sensor input to the ECU?
I assume this is for the speed limiter.

Not bec I know, but on a 306 Gti6 eng loom I converted to run Jenvey tb's I found out the speed sensor ran through ECU so that the ECU knew the car was moving, all to do with the idle control/throttle position etc

I have got a ZX9R "E" in mine, i have got the speed sensor picking up the 4 prop bolts, running thro a speedo healer to the "E" speedo, all works fine. I wasnt aware that there is any speed limiter on this engine, feed could be just for the speedo, or perhaps it kicks in at 170MPH !!