Twin Air Foam Air Filter | 156143 gutsvs 9 bolts provide a higher

9 bolts provide a higher tensile strength than stock

Honda CRF450R ('04-'08)

3 style seat bolts

closed-cell foam offers added protection and keeps the elements out

Comfortable due to the low-gravity waist location and AirLine back ventilation

Twin Air Foam Air Filter | 156143 gutsvs 9 bolts provide a higherThick, flat foam, greaseless sealing ring ensures maximum contact with your airbox while acting as a breathable gasket for increased air passage Coarse open pore foam catches airborn dirt, grime, and sand Fine open pore inner foam acts as second filter to trap the smallest particles while ensuring maximum air passage Adhesive withstands repeated cleaning Smaller than stock to increase air space and circulation around filter