yup, a few have used it. There are two sources people are buying them from. Brent and
www.brenspeed.com and the other is
www.hypillauto.com. No dyno results from hypillauto, but Y2KSVT posted a 10 hp gain from his tune from brenspeed. Run a search in the dyno and drag and general for more on this. Actually, theres a thread on the first page in the general regarding this.