I have the nismo gt pro lsd, it's really noisy and very one thinks there is something wrong with my car .... Little do they know

 

Clutch type diffs are going to clunk at low speeds and be very jerky around parking lots and slow cornering. You don't want a 2 way on a street driven car. They also require regular maintenance.

Helical LSDs like quaife will act almost like a stock unit on the street and require zero maintenance. However, if you lift an inside rear tire under heavy cornering, they act like an open diff.

OS Giken is the best of both worlds. It is a clutch type that behaves nicely on the street due to their unique design. It is the most expensive and also the best.

If you do go clutch type, go 1.5 way.

 

All diff carriers will require what I mentioned above. All of them are just as easy to install with those parts. Even the OEM open or VLSD will require the mentioned parts for install. There is not magic that allows the Tomei to be different.

Very scary you are a tech at a dealer, I guess that is why my vehicles never go to the shop.