Yes, I have a rear quaife. I am unaware of any front LSD options available.
I have only autocrossed once after installing the LSD on the car, and while it may have allowed me to power through understeer a bit better, the difference was not immense. I have 275 tires all around right now, but will be switching to 255 for my next set due to the moderate rub that has destroyed my front fender liners. This is a considerable factor given the huge reduction in push the car has with very wide front rubber.
I think the difference will be much more noticeable with narrow rubber, and with my winter 225 pilot alpins I am very excited to do some snow donuts in the car to experience the change.
| PROcede Rev3 | Vishnu Meth | DCI | BMW Perf. Exhaust | AR Coated/Catless | CP-E FMIC | Quaife |