hhe, i think that's true about what you said, c56 close ratio not suite to my driving style, cos i'm not a racing guy, furthermore my car is only standard 4afe, maybe i just need to convert to c52 without lsd, but i really want to feel if gearbox with lsd will make any different i.e day to day normal driving and occasionally using the highway. the main point for me is either this system is maintenance free or not, except for gear lube change of course. my mechanic quote rm 1600 for non lsd and rm 2200 for lsd. both inclusive of workmanship.i'm quite pening right know. the prospect of having lsd gearbox make me want to have it but at the same thinking if worth it or not for the extra 600.. hhehe..