My DPS went out and was replaced by Dealer. I looked into the aftermarket power steering a little when I was thinking the factory one could be an ongoing problem. It since has been fine so I haven't done much more with it. I do know the can am steering works different as your speed changes so less help at high speed and more help at low speed. I couldn't find where the aftermarket one did that. It may, but I just didn't see it listed. I think I was looking at super atv one or something like that. Also the factory one has to be zeroed straight ahead using the can am BUDS diagnostic computer. I'm not sure how you zero the aftermarket system. Those are a few questions I would ask before buying one. Your friend may have those answers or the seller should.