I also have just installed the FIX kit, '09 Dragon RMK. From what I have been told if you have not changed the upgraded compression ratio,12.5:1, then the upgraded ECU flash is fine. I run a PCV as well, though. Increase the Comp ratio and PMS/MtnFix recomends that the original '08 flash be used. You could use a fuel controller instead i am sure. Correct me if I am wrong.