Yeah, Ive allready got it installed! Stage 1, 2 and 3 are available now from SPEC, I have stage 2. Stage 3 is race only. I blew the stock one with too large of a shot, stage 2 holds it down for sure. You can purchase them through gravanatuning.com. Watch out though they are $$$! I get free car work so it wasn't bad at all. Got the lightweight flywheel to go along with it, nice differance!