Has anyone ever used this? I saw the ECU on ebay and also have a friend in Europe that wants to sell me the Power FC and the commander. I will have to conform my S4 to S5 but besides that pain does any one have any input how it performs. Any differences compared to the unit for the FD? i am really considering my buddies' offer but want to hear some input. Thanks guys.

 

I think this unit and the FD unit are the same. The only difference is the harness adapter that arranges the pins to match the FD layout.