plastic does not create vibrations and does not save deformations

Made of heat treated steel

This is usually what gets replaced in order to eliminate the oil leak

2017 - 2020 Kawasaki Ninja 650

K&N - High-Flow OEM Air Filter (KA-6005) Options:KA-6005 plastic does not create vibrationsDesigned to provide increased performance Pleated media provides a large filtration area offering long service intervals Multi Layers of woven cotton gauze media offers excellent filtration Fits directly into OEM Airbox with application specific Sealing Bead to ensure a precise fit Fuel Management modifications are not normally required for increased performance Washable & reusable, pre oiled and ready to ride!