Hi everyone. After the last race i finally decided that it is definetely worth buying an LSD. I am however on a budget, and anything i spend here means less track time this year. What i'm wondering is; is the quaife definetely worth it or are the other alternatives ok. There is a KAAZ diff for 850, or i've even heard of something called the phantom grip for 300 or less. Anyone with any experience or knowledge about the differences on the track?