Motec 600 is as far as I know the only ecu range that allows the electronic throttle to be used unless using it as a piggy back, As for tuning you simply can't beat this ecu being able to select what map pionts you would like timing and fuel unlike the flash tuner having 1000rpm tuning areas above 3000rpm, The car drive like a factory car with no delayed throttle response and cam phasing works perfect. For any car wanting to produce big numbers back to back to back its needs to be a motec, This car will 6 runs with in 10rwhp of each other until temp compension comes into it. In saying that we have a couple of cars at 480rwkw still on flash and seem to work okay even with injectors driver boxes for very large injectors just don't have the precise control.