Twin Air Yamaha YZ450F 10-13 Extreme Air Filter

Twin Air Extreme / Dust / Sand filters have 33% increased protection over standard filters. Both protective layers are 33% thicker than the original dual-stage filter. Offering superior protection the foam (60/45 Pores) is bonded together to provide maximum filtration and superior airflow. FEATURES 33% Increased Protection Dual-Stage Foam 20mm Thick 60/45 Pores/Inch