Apreciate your sentiment Gav, but lets be realistic, by-passing a 180kmh speed limiter is quite different to running a car on homebrand oil, and the car is essentially stock so i feel Nissan's computer is probably more than capable of doing the job sufficiently well. If there are no negatives i.e Hicas shutdown, then i would be happy to cut a wire. so mate if you can help, that would be great....