err..about the "not sure thing"....u not sure the gearbox from B6T or u not sure if the gbox is LSD?...well, if u want to make sure it's LSD, jack the car up and spin one of the front wheel...if the other wheel also spinning together...that's LSD hehe... meanwhile, LSD gearbox got two version... 1.8 and 1.6....err...btw free bump for u...quite attractive price...(if this including ECU n Engine wirings) :D