I currently have a 2011 YZ450 and 2006 YZ450 that I race in the Southern Alberta CMRC cross country/ Hare scramble circuit. I'm looking to sell the 2011 and possibly purchase a 2012-14 (depending on what I can find) WR450. I've never really ridden a WR and from what everyone says they're just pigs but the new ones have really caught my eye. I'm just wondering if Ill regret the change from a powerhouse like the YZ to a WR. After reading a few threads on WR's I see there can be a lot of sensor issues, is this as common as it looks? Also what's the average price you guys have put in to make these bikes perform very well with no limitations like exhaust, new ECU, or any other important parts? Thanks for the help guys, I may be a new WR member soon!