Why doesn the JB4 include a 155mph speed limiter removal?
While “clamping” the hardwired speed signal to the ECU as other piggybacks do will allow the vehicle to exceed 155mph, the true vehicle speed is recorded by the stability control module and other modules using sensors at each of the four wheels. These modules will always contain the true vehicle speed regardless of the ECU clamp. For those customers who are out of warranty and fully aware of the extreme risks and danger in operating their vehicle in excess of 155mph on race tracks, BMS offers a stand alone speed delimiter that plugs in to the JB4 harness.
