Outerwears 20-1008-04 Pre-Filter for K&N HA-4099 Filter - Yellow engine-power-valve-components while the PTFE liner is

while the PTFE liner is an inert material that is compatible with all brake and clutch fluids

Feature precision rolled threads for optimum engagement

Offers more protection than most other frame sliders

2020-2022 Sherco 250 SE-R Racing

10mm inner foam

Outerwears 20-1008-04 Pre-Filter for K&N HA-4099 Filter - Yellow engine-power-valve-components while the PTFE liner isK&N Round Taper. Outerwear pre filters are manufactured from a durable polyester material. Material contains uniform micron sized openings that allow air in, yet filters out the unwanted elements, such as sand, dirt, clay and even water. Filters items as small as . 005 in diameter without noticeable air flow restriction. Dyno and flow bench testing has shown no significant loss of horsepower or air intake while using this product. Silicone impregnated