I got the bad news on my 570 rzr with 1600 miles. It has sucked some dust in causing the valves and rings to wear and lost compression. Repair cost is around $900. I have replaced the air filter 5 times in the 1600 miles I have owned it and always used stock polaris filters. I always greased the bottom seal and and wiped out air box before installing the filter. I do not know of anything I could have done to prevent this. The paper filter and air box design of this polaris is a joke. This is not the first 570 at this dealership to have this porblem. Actually it sounded pretty common in talking to them. I had extended warranty but they will not cover anything. They told me I should have vacuumed the filter after every ride and replaced it more often. WHere does it say that in the owners manual? I am getting it fixed but am hesitant to drive it again until I can find a better filter for it. On my 800 I have the fleetguard and never see any dust on the second stage filter. Polaris needs something sililar for the 570. If I can't find a better air filter I will be looking for a different machine.