K&N Air Filter Wrap Drycharger - Round Tapered - Black for 07-09 & 11 Polaris Outlaw 525The K&N Drycharger is a silicone treated, polyester wrap that is made to cover K&N Air Filters or Personal Watercraft Flame Arrestors. These Drychargers, which are similar to the K&N Prechargers, contain uniform micron sized openings that allow high air flow. Yet, due to the Drychargers silicone treated polyester wrap, the amount of water that reaches the air filter or flame arrestor is limited. This Part Fits: Year Make Model Submodel 2007 2011