love the new rmax xtr , added the windshield , rear window , rear bumper . next will be beadlocks and considering 32" tires . I like the seat mod mentioned, I would like the seats rocked back a little bit more.
You can do a harness that goes over the seat and mounts to the bar behind. They are pretty universal. Someone had a thread on here that showed cutouts for the seat so you could run the harness through it (better option in my opinion if your brave enough to cut up a new seat). Trail Armor has sliders for the RMAX2.