from falling in as you wriggle the carbs all the way out

leak-free fit

K&N Part #: BM-1113

Maximum breathability and optimal comfort

The front fork does not need to be removed to install this kit

BMC Air Filters - ATV Yamaha YFM400 '00-2001 High Performance Air Filter Option:Standard (FM342/21) from falling in as youThis 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.