Foam air filter - Yamaha WR 250 F ('20-'21) / WR 450 F ('19-'21) / YZ 250 F 4T ('19-'21) / YZ 450 F ('18-'21) - JM

Foam from BlackBird Racing for Yamaha WR 250 F (2020-2021) / WR 450 F GP (2019) / WR 450 F (2019-2021) / YZ 250 F 4T (2019-2021) / YZ 250 F 4T Monster Energy Edition (2021) / YZ 450 F (2018-2021) / YZ 450 F Monster Energy Edition (2021).

Technical specifications:
- Standard height;
- made from polyurethane foam;
- made from denser foam than the original to enhance rider mobility;
- water-resistant and fits on the original seat base;
- the original seat cover can still be used.

The complete application list can be found below.