OE replacement high-flow air filter - BMW R18

Fits directly into the OEM airbox with a specific sealing gasket for each application.
No fuel management modifications required to improve performance.
Pleated media providing a large filtration surface and extended service intervals.
Washable and reusable, pre-oiled and ready to install.
Designed to deliver enhanced performance.
Manufactured in the USA.
Product Information
Brand: K & N
Supplier Reference: BM-1821
Filter Height: 21.00 mm (0.813")
Features: Washable
Base Colour: Black
Colour/Finish: Black, Red
Filter Shape: Trapezoidal
Filter Element Material: Cotton Mesh
Model: High-Flow
Product Name: Air Filter
Type: OEM Replacement
Units: Unit