13-16 HONDA CRF450R: Acerbis Airbox Covers (White) Over 30 years of experience with the best off-road racers in the world, Acerbis has enriched their constant technical development, allowing them to become a premier company within the motorcycle industry. All plastic pieces have the original factory shape of the O.E.M. model. Sold as a pair (most models, based on fitment; some will be one-piece and some will only fit one side). Note: Image is for representation only; actual item may vary by fitment.