Aftermarket Assassins RS1 PowerCore Air Filter | Polaris RZR XP1000 / RZR XP Turbo 

Fits RZR XP 1000 (all years), RZR XP Turbo (all years incl Turbo S), & RZR RS1. THE BEST AIR FILTER WE COULD FIND ON THE PLANET!  This filter is expensive because it works, and it's worth every penny. You will not find another filter that performs this well while filtering so much fine dust. We've been racing and riding off road vehicles for many years, and having an air filter you can trust is HUGE.  This is the only air filter we will install on our personal UTV's.  When we remove this after a day of dusty riding we pour sand out of the filter(literally a pile).  The intake side of this filter is still spotless with it's brand new look, while the end of the filter has faded from capturing dust.  Unbelievable what this filter will catch, and yet still no horsepower loss. This filter uses unique technology that was developed for off road use to capture a massive amount of particles and still flow at peak efficiency.  You can select to add the pre filter if you wish.  We don't find it necessary on RZR models as the air is pre filtered already. Clean with a shop vac or very low PSI non direct compressed air to maintain proper filtration No oiling, this is a dry fiber filter Clamp on style allows for a more secure filter mount From the manufacturer: Off-Road automotive performance products are built to a more rugged standard than everyday performance products in order to handle the demand of various terrains and harsh elements. Filtration is possibly the most important aspect to consider because it affects the long term performance of the engine. Donaldson PowerCore® filters have far superior filtration compared to traditional cotton gauze air filters. PowerCore® filters are specially designed to filter more and greater amounts of fine particulate than other performance filtration options. Donaldson® perfected the PowerCore® filter in extreme environments around the world, leveraging their extensive knowledge of specialty filtration products designed for usage in heavy equipment and military applications. Today, millions of PowerCore® air filters are utilized around the world and trusted by professionals to deliver in the harshest environment on the planet. PowerCore® Air Filters are ideally suited for off-road and outdoor enthusiasts due to their unmatched filtration properties and efficiencies (Up to 99.97% efficient).