DFR or Crow Harnesses
UTV Inc Nerf Bars
Rugged Radio Intercom with Radio and iPod/XM
Pure Polaris Bumpers (Front and Rear)
Weller Racing Stage 1 Kit (Intake, exhaust, clutch, fuel controller, dyno tune)
My next thing will probably be a new cage and roof, I found my vertical line of sight was cut down when doing steep drops and climbs in the dunes with Polaris cage and roof.
Basically it is a clutch kit (Dalton), Muzzy Exhaust, Power Commander EFI and K&N Intake. I had them install mine and do the dyno tune.
The dyno baseline for my stock engine was 37HP at rear wheel and after install and tune it was 46.8. Seat of the pants you can definitely feel the throttle response difference. I took a friend with a stock 4 for a ride and he could tell the difference as a passenger.
I have read much debate about K&N air intakes vs. others. Weller swears by them and they race side x sides on all sorts of conditions. Their caveat is that you must keep it clean and serviced, it is not as maintenance free as other filter types.
Weller is run by two Weller brothers and are just super nice guys. If you call Jason normally answers the phone. A friend had a Rhino big bore kit installed by them and tweaked the carb settings when in the mountains. When he got to the dunes it wasn't running right. He called and they gave him a recommended adjustment fix, it worked so he didn't call back. The next day a weekend Jason called him to find out if all was OK.