We bought a 2nd hand ECU which came from Japan. When opened it we knew that it was not normal (It was reprogrammed). When we fixed it on the car we discovered that there is no rev limit whereas we need it to be there. FYI, we got the ECU for $100 (comparing to JWT with $500+) and want to spend more to make it have a cut off at 7500 RPM. I wish you got my point.