Helical is preferred for racing?? wtf are u on about? DRIFTERS??? Look at the top track cars from Australia, USA and Japan. You think they use helical? NO .. why? because it lacks response and locking power.
If you bothered checking the inherent design of a clutch type LSD vs a helical, the discs provide greater locking power and more responsive engagement over the gear type diffs.
Why does Honda use a helical diff? Because its lower maintenance, lower cost, a mass produced item that is easy on everyday driving. We wouldnt want a chattering diff. for a factory car would we?
Quote: "you will find that all a d-series guy has to do, is shim it correctly' the fact that you have to shim the POS obx unit and it does not plug and play, shows testament that the quality control and development of this item is below par. What type of company produces an item that doesnt fit or operate correctly? An EBAY company.
This is the reason why I dont wish to waste my hard earned $$$ to 'try first hand', because changing a diff. isnt like changing brake pads. I would rather spend the money on something proven and not fix things twice.
Go figure.

