| When I bought my 57mm system dealer told me I could run bike without race ecu if I wasn't bothered about an extra 1000 revs and they made sure fueling was OK. if they coded the ecu to my bike it can only be done once so you can't sell the system with that ecu, it would need a new one. They also said it was possible to install the race ecu without coding it but I'm not certain that works |