here are some vids of testing at glamis and coal creek TN...we are on a USA tour riding with UTV groups in TN,KY,WV,OH,MO,OK,NM and AZ....The rzr4 does as good if not better than a RZR S, it's amazing!!!:)
YouTube - RZR4 Turbo 130hp Wasteland Performance Kit Glamis Turbo.avi
YouTube -...