PEAK & HOLD PRO INJECTOR DRIVERFEATURES Peak and Hold PRO Injector Driver is an advanced module designed to control low impedance injectors at a professional level, featuring 8 channels, 26 way automotive connector and several motor protections levels in case an injector or connection fails. In general, racing high flow injectors use low impedance internal coils (with less than 7 Ohms resistance). That allows them to have a much shorter response time than a high impedance injector.