New windshield wiper motor

My 2007 Winnebago Sightseer is in need of another wiper motor, the second since I bought it just a year ago. I'm thinking of putting a little more powerful motor in this time, its made by the same manufacturer as the original equipment just a little more power.i would like to do this because the original equipment doesn't seem to have the power to work the wipers at highway speeds.im wondering if anyone else has made this change in wiper motors or has heard of anyone doing it.