If money isn't a real issue, then if i was you I would get the JDM 2nd Gen B16 w/ the Y21 or S21 hydraulic trans w/ the optional LSD. Your car already is equipped with a hydraulic trans, so take advantage of it and get the better hydraulic trans (they are stronger and are also less prone to grinding due to worn synchros like their cable predecesors). You will be getting 170hp w/ something like 126ft/lbs. of torque.... instead of 160hp and 111ft/lbs of torque if you got the JDM 1st gen B16. They make a conversion kit to use a cable clutch if your car previously had a hyrdraulic transmission....but since you said money isn't really too much of an issue....definately go w/ the JDM 2nd gen B16 like I said before. just my two cents, tho