Twin Air Air Filter Yamaha YZ450F '10-'13 S3-Size-90-90-21 Features a slim U-shaped profile

Features a slim U-shaped profile to slide easily into tight clearances around the cylinder head

It provides a reliable airtight seal to keep your machine moving smoothly on the road or trail

100% Slip-Free Performance Guaranteed

The high-density ceramic insulator ensures electrical energy is directed exclusively to the electrode tip

Twin Air Air Filter Yamaha YZ450F '10-'13 S3-Size-90-90-21 Features a slim U-shaped profileTwin Airs breakthrough, fused dual layer design (now widely copied) combined performance and protection. The fused layers of open pore foam and fine inner foam trap even the smallest particles. The new, rounder design boosts airflow. So do the minimized seams made possible by a revolutionary micro gluing process: Shorter seams = more foam = more flow. Features: Designed for Your Bike: No universal fits at Twin Air 1500+ moulds available for all sorts