Ok. so im trying to find a way to put the rsx ecu in my 03 civic ex its cheaper than k-pro plus i have the stupid kind of transmission (automatic) so k-pro wont work with it anyway. If i buy an old rsx ecu for an automatic and replace mine with it will it work? probly a stupid question but im sure someone else has tryed this if you can give me an answer without calling me a dumba** that would be much appreciated but any helps good thanks.

 

99.8% sure there's no way that would work. Why would you want to do that anyways? Just do an auto-manual swap if you want it to be faster, the auto transmissions shift slow and destroy themselves under pressure. Or buy an RSX