I know that the Y1 is longer than the S1 transmission, I did some rsearch and found that it is however shorter than the tranny that comes in 94+ LS integra's. Is the Y1 going to be closer to USDM ITR gearing or LS integra's? I also noticed that if I installed a 4.40 final drive that the Y1 would be very close to USDM ITR specs.