I am facing this problem whenever I close my throttle abruptly at say above 3000rpm, I heard this loud noise coming from my engine area. It sounds like its coming from the gearbox. It sounds like "WARRRRRRRRRR" when you try to pronounce it loudly. What can it be? I'm on a Spoon LSD. Do all B18C5s with LSD sound like that when you release the throttle? I have a bad drive shaft seal at the moment which is leaking MTF very slowly. Could it be my gearbox is out of transmission fluid?