Powell Performance Fabrication is making stuff for them here in Minnesota, they're just starting on the parts. Check out their Rhino & RZR stuff, pretty sweet.
Velocity Air intake technology has a filter kit for it. Uses the stock air box, new filter and adapter along with a pre filter. Should be up on our E Bay site in the next 24 hours. Upgrades the restrictive foam oem unit. Car looks great!
HRT Motorsports has products for the new Teryx.
In fact, they are racing a Teryx this year. There is a press release on the home page under "Racing News". HRT Motorsports