K&N Adjustable, Blue Pod Filter (RG-1001BL) Fits 3" Inlet, 3.5" Inlet & 4" Inlet x 5.5" long
K&N adjustable blue Air Filters come with flange inserts which adjust the filter's flange to one of three inside flange diameters. The flange pod filterflanges are made with ultra-strong molded pliable rubber which absorbs vibration and allows for secure attachment. K&N clamp-on universal air filters are washable and reusable.
Part RG-1001BL Product Specifications
K&N currently does not have a blue oil for re making these filters blue.