Direct-mount air filter - 89 mm

K&N universal air filters are available in four models: straight round, conical round, straight oval, and conical oval.  
All K&N air filters in this section mount directly to the carburettor intake, replacing the airbox and standard filter element; parts with the RC prefix feature chrome end caps; the remainder have black rubber end caps (K&N clamp-on filters are not road legal).  
The pleated design increases airflow surface area.  
Match the external diameter (ED) of your carburettor intake to the internal diameter (ID) of the filter (given in inches and millimetres).
Product Information
Brand: K & N
Supplier Reference: RU-2790
Inner Diameter: 89.00 mm
Internal Diameter: 89.00 mm (3-1/2")
Style: Clamp Mount
Filter Shape: Round, Conical
Product Name: Air Filter
Units: Unit