Ok I have ready quite few post on these swaps. I'm doing a complete engine and body modification which i'm not going to get into the whole body thing. Anyhow right now i'm just buying all parts first. I have a 91 toyota camry with the 3SFE and manual tranny. I have located 3sgte engine. Wich I know the ECU unit will have to be changed. My question is will I also need to change the tranny. I have also found another engine, ecu, and tranny but I think it is for a supra its a 1JZGTE twin turbo.