Bought a brand new RZR-S for $14K. Soon after I began hearing that the air filter on the vehicle was allowing dust to infiltrate the motor. Since my unit did not see much use I kept a close eye on this while contacting my dealer regarding this problem. The dealer denied any such problem existed even though owner forums listed event after event of Polaris being notified of the problem and extreme cases of RZR units seizing their motors under warranty. Without warning I received a new "updated" air filter with instructions to throw out... read full review »