I installing a JDM EJ20TT into my brighton edition 97 impreza currently with an EJ18. Has anyone done this conversion? Are there any unforeseen challenges other than the need to relocate the driver's side turbo closer to the motor? Additionally, I don't have an ECU for the new motor? I was thinking of putting in some variable resistors to adjust the O2 and MAF before sending the signals to the original ECU... will this work? Lastly, when I got the motor, the passenger turbo had an oil leak. I am currently rebuilding this one and am at a point where I cannot determine what to do next. I am having trouble getting the turbine off. Any suggestions would probably help. Thank you!