OnlyPolaris is putting stage 2 on his Pro,but if u keep looking at other threads alot of guys are considering the Power Addiction head and a HPS can.That will run u about $800 and adds 7-10hp,Talk to Chrisco on here he carry's them.
With the Head change would you not need to do some adjusting on the fuel mapping still? hence the need for something like the PowerCommanderV?