No Toil 370-14 Foam Air Filter seats-seat-covers or simply toss the face

or simply toss the face coverings altogether

see fitment note

1994-1998 Yamaha YZF750R

2008 KTM 505 SX-F

No Toil 370-14 Foam Air Filter seats-seat-covers or simply toss the faceMade of flame laminated dual layer foam, bonded with the highest quality glue to stand up to the roughest and toughest riding or terrain. Fully open cell structure for highest airflow and maximum protection. These filters, used with No Toil foam filter treatment, provide the best air filtration system in the world. Heavy duty glue provides protection from all solvents. Wide, soft sealing ring for extra protection. Flexible seams prevent cracking.