Oil Filter For CBR1000RA S1 2017-2023 Fit For CBR1000RR 17-23 CBR1000RA Fireblade 1000 2017-2023 CBR1000 S1 2017-2019; dedicated engine filter fits airbox internal structure custom pre cut filter outline aligns airbox edge tightly; quick snap fit installation without or extra adjustments multi layered filter medium traps road dust particles; maintains stable smooth flow during speed racing riding density medium with hot pressing craft; uniform density across the whole filter surface OEM matching overall dimension filter thickness; fits airbox inner without loose gaps or leakage