i got a s200b with all the bells and whistles!! dont have a ecu with it anymore though. scotty can hook you up with that though. got every option you could get on it too. 2-step, launch control, in car adjustable button to adjust the user adj. options, micro switch for the two step(hooks on clutch pedal). call mike at mainstream, he can tell you about it. switched to an aem is why i no longer need it