K&N Custom Assembly Filter Kits utilizes an adapter or tube that mounts directly to the air box. The universal clamp-on air filter then attaches to the adapter or tube. The large mounting surface of the clamp-on air filter provides better stability during rigorous riding. The assembly adapter or tube acts as a velocity stack within the air box. K&N Custom Assembly Filter Kits, like all K&N air filters, are designed to provide excellent filtration and outstanding air flow.. K&N Custom Assembly Filter Kits, like all K&N air filters, are designed to provide excellent filtration and optimum air flow.. K&N 09-12 Can-Am Outlander 800R/Max 800R/10-12 650/Max650/10-11 Renegade 800 Air Filter. High air flow with excellent filtration. Engine Cold Air Intake Performance Kit. Performance Air Intake System. Air Intake System

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