I have 2-3" set at 2" for mine below. For kicks they tried 3 before delivery and said didn't leave much room between tire and frame. Do-able but ride would suffer and you should put the skid plate on. Was marginal to use skid plate at 2" not 100% necessary, but on a $22,000 investment well worth it.
2012 Black XC Tour, HELI bars,
1.5" lowering kit, Closeup Seat, Heli bars, Reverse, "sans cats", Thunder lollipops, ATS, IAV, PC5, RPWs, m.o.u.s.e...