Whats the best way to remove the Japan imposed 112mph speed limiter on a 1999 Rx-7? Not into a new ECU, car is totally original.
On my old fd i cut a wire to ecu blue yellow i think. But a 93.
A lot of owners use one of the chips that converts from Km/h to mph at the same time as delimiting. I have one myself and it works fine. Just do a search on ebay or Google for "Mazda Bongo RX7"
That device looks perfect, thanks for the heads up!