Those are very nice wonder why you don't see them in desert racing more.I know boxed arms are pretty popular on the west coast, but the Racer Tech XP 1000 Trailing Arms are definitely worth a look. They are the only ones in the world that offer adjustable toe. This may sound pointless to some, but those who know setups know that rear toe makes a huge difference traction, steering and stability. We've been running these for two years now with zero failures and have noticed they are especially popular with the short course guys as well as XC racers who need to have the best handling car possible. They are 1.5 lbs. over stock weight per side but the toe adjustment adds a bit. I would put these up against anything else out there for strength vs. weight.
We do have a LT +3.5" version of these available now as well (not on site yet) along with a full LT kit with fixed trailing arms (coming soon) and also a version of the OEM width RZR XP 900 Adjustable Toe Trailing Arms as well. So, we have some good options now. And we're also working on some pretty comprehensive CV / Brake guards and some skids too.