SX125-300 TC125-250 23-24 MC125-250 24 Twin Air Powerflow Kit. 
The best filter in the world can’t do its job if there are leaks in the seal of the airbox. Twin Air’s PowerFlow Kits ensure a leak-proof, fool-proof fit with a rigid, lightweight, billet-aluminum cage that replaces your flimsy, plastic stock cage, and a billet aluminum flange with a rubber seal that bolts tight to your airbox.GAS GAS MX
MC125 24-
MC250 24-
GAS GAS ENDURO
EC250 24-
EC300 24-
GAS GAS XC
EX250 24-
EX300 24-
KTM MX
125 SX 23-24
250 SX 23-24
300 SX 23-24
KTM ENDURO
150 EXC TPI 24-
250 EXC TPI 24-
300 EXC TPI 24-
HUSQVARNA MX
TC125 23-24
TC250 23-24
HUSQVARNA ENDURO
TE 150I 24-
TE 250I 24-
TE 300I 24-
HUSQVARNA XC
TX300 TPI 23-24