Trevor, I was about to link you to this excellent post of Phil's, but he has beaten me to it.
So far as I can see, this changing the pulse will also affect your odometer, which is driven from the speedo output from the box also. So you should be clocking up in miles, not kms.
Can you confirm, Phil?
I am wondering if the chip allows the signal to loop through if the chip is not powered up? In which case a discreet switch would leave it street legal for Trevor for the MOT people, and it could be switched to miles/derestricted for those special occasions
Don't forget Trevor, with an unchanged ECU, the limiter will still cut in at 180 mph.
Could give you a scary moment on your track day
Joe
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