[b3lha]

The speed limiter is built into the ECU. It measures your speed by counting the number of pulses per second received from speed sensor #2.

To defeat the limiter, you install a frequency divider chip which reduces the number of pulses per second (and hence miles per hour) seen by the ECU.

My (JDM) car has a 180 km/h (112mph) speed limiter. I fitted a chip which divides the frequency by 1.6. If I were to drive at 112mph the ECU would think I am only doing 112/1.6=70 mph and would not cut the power. The limiter will only activate at 112*1.6=180mph.

There is a detailed HowTo in the European forum.

Phil.