Made of durable aluminum

All 4-strokes from 2009 up

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4” Because

BMC Air Filters - Honda SH300i High Performance Air Filter Option:Standard (FM636/04) Made of durable aluminumThis High Performance air filter is made from premium material that allow increased air flow and filtration efficiency, blocking containment as small as 7 microns (compared with 10 microns in most other filters). BMC air filters are produced using a "Full Moulding" system. This prolongs the life and durability of the filter. The rubber used in BMC air filtering systems has a long life with optimum adhesion characteristics to all shapes of airboxes.