Fuel Customs Air Filter Yamaha Raptor 700 The Fuel Customs Air Filters for the Yamaha Raptor 700 focus its interest in airflow restriction (differential pressure) dust collection efficiency and dust capacity The ISO 5011 Standard is what FCI adheres to as we seek innovations and improvements in our product line and to test our products so they meet the highest standard possible The end result is simple: increased horsepower by reducing the restriction of the air filter and/or intake kit while still protecting the engine Trust your performance needs to the only performance filter tested to these standards and post results 8ply Filter