The standard LSD has two friction plates giving around 25% lock and 45/45 ramp angles. The friction plates will be frictionless in most cars and you effectively will not have an LSD.
Just replacing the two plates makes a huge difference. But by adding two extra friction plates and re-shimming we can achieve around 45% lock and much better traction.
If you are very serious we can recut extra ramps in the unit too. CSR have been using 70/30 ramp angles on some cars, it loosens the lock on throttle-lift and tightens it on throttle on. The result is a looser handling car on corner entry and more drive on corner exit.
We can fit the 75 LSD in GTV6 and GTV gearboxes if required.