Polisport Radiator Louvers - Black Panels for Yamaha YZ 250F/450FX/WR 450F (2024) Yamaha YZ 450F (2023-2024) - OEM Fit, Durable Plastic, Enhanced Airflow, Easy Installation Tube Expander Electropneumatic mechanism: Drills up to

Electropneumatic mechanism: Drills up to 5/8 holes in poured concrete and masonry

The unique CNC-profiled Saw-Tooth foam doubles the filtration surface area compared to the stock filter

It is designed only for use with Polisport’s Performance Racing Seat

The REDLITHIUM HIGH OUTPUT XC8

Up to 35 ft-lbs

Polisport Radiator Louvers - Black Panels for Yamaha YZ 250F/450FX/WR 450F (2024) Yamaha YZ 450F (2023-2024) - OEM Fit, Durable Plastic, Enhanced Airflow, Easy Installation Tube Expander Electropneumatic mechanism: Drills up toKeep your engine cool and protected with Polisport Radiator Louvers, engineered for optimal airflow and rugged off road durability. Made from Durable Gloss Polypropylene (DGP), these injection molded panels deliver a precise OEM style fit while enhancing the radiators cooling efficiency. Whether you're replacing stock louvers or upgrading for performance, Polisport offers a reliable solution trusted by riders worldwide.