Along with the Twin Air filter (you could go with a Uni filter too - same price) I would also add the Skinz pre-filter (goes over the foam filter) if you plan on running in any dusty conditions. MAKE SURE YOU OIL THE FILTER PROPERLY AND CLEAN IT FREQUENTLY. Or find one of your wifes old nylons (maybe yours - not to judge) and put a section over the intake with some zip ties. There are 2 issues with the King Quads - 1 being that the have a very open intake, so a lot of dust gets up in there (bud had to rebuild his after 400 miles even with a Foam filter) and 2, they eat batteries for some reason. Seems like they have a constant ghost draw on the battery - even plagues some of their bikes (DRZ400). I would invest in a good trickle charger and plug it in when not in use for long periods of time.
Other than that - its a great quad. Wish I would have listen to my gut and bought the KQ instead of my Cat 700 (shares the same motor as the KQ700) But my next quad WILL be the Rene 800 for myself and 500 for da wife
Good luck and have fun with it
That renegage 800 is two scoops of awesome. My cuz just bought two and he allowed me to ride one in Luther MI. I think it could replace viagra.