If you really want an adrenaline rush get a Redline. Mine will smoke a RZR-s all day. 750lb and currently about 90hp. Only problem is mud (only 2 wheel drive), but with 14" of travel it will blast up most any hill.
Anytime y'all are around drop by and give me some ideas for upgrades. Also if you would like to get a little adrenalin rush I have another toy you can take a drive in.