I think Prowlerbob has a unisteer unit "Rackzilla" and powersteering.. I remember reading about it.. I use the unisteer stuff on my Kawasaki X2 Jetski and it has held up very very well.. Also on another note if you just want it to turn easier we have drilled some zerks on my buddy 650 prowler ball joints and it turns with one finger now.. Anyways here is the link to the unisteer stuff Unisteer: UTV RACKS-UTILITY VEHICLE RACKS
I have the Billet King rack and it works great. It is made by F1 Engineering which is a well known company in the race car world. The rack turns 20% quicker then the stock rack and it's very well made. The folks that own the company Roger and Billine will take good care of you.
I have the Unisteer, Rackzilla on my XTZ, with the Unisteer electra steer. Wow, made all the difference in the way.i did have a problem with the Rackzilla, rack. Well not really with the rack it self. Under hard usage, the mount for the rack will flex. After repeated flexing it will fail. It did on mine.Ruined the rack, which Unisteer replaced free of charge. That tells me something about the company.I ground out the old mount and replaced it with 3/16 plate. This will not flex. Now it works great. The new rack uses 3 bolts instead of 2 on the stock rack. I also put a u-clamp on the rack body itself for a little extra bracing. I don't think i will have any further problems with my steering.As for the electra steer, it is not as easy as a hydraulic steer, but it is one hell of a lot easier than stock.