Just wanted pass on a little info, hope it hasn't already been covered. I just bought and installed UTV Giant.com lower door kits for my 20016 RZR 1000-4. These lower doors kits are a steal and made in the USA. @ $139.95 for a complete set, with free shipping and no tax to AZ. Made of .080 aluminum and powder coated in black, blue, red, ect. all hardware and rubber trim included. After a little adjustment they fit fine, are strong and easy to install. Only negative, the edges are a little rough, but the rubber trim covers it, and the aluminum might have had a few little defects or scatches before powder coating, but not bad and compared to $400 to $600 from most companies these doors are a buy. They also come with the little piece behind the back door for either a 900 or 1000, just use the one you need. BTW for a 2 door they're only $89.95 I know this sounds like an add, but I have no connection and it's my first purchase from them, they don't carry too much. Ordered on friday, had them in Havasu by 10:00am Tues.