When selecting one of K&Ns universal round tapered air filters, you should consider the following dimensions as they relate to the specification chart:. Mounting Flange Inside Diameter - This is the most critical dimension and should be very close to the diameter of the applications inlet flange. The flange will stretch up to 1/8in. for those in-between sizes. Filter Diameter - This is the outside diameter of the filter. The top size is listed first, then the base size. Always use the largest size filter that is practical for the application. Filter Length - This dimension is the vertical length of the filter body only, it does not include the length of the flange, nor does it take into account the taper of the filter media. Always use the longest filter practical, for maximum filtration.. Flange Angle and/or Length - If no angle is listed in the specifications table, the flange is straight. Any angle listed is in degrees and can be utilized when space is a problem. Flange Type - The location of the flange in relation to the O.D. of the filter is sometimes offset to one edge of the filter for more clearance in an application. These filters are legal ONLY for racing vehicles. Not applicable, not intended for use on emission controlled street or highway vehicles. Mounting Flange Inside Diameter 1 11/16. MM 43, Filter Outside Diameter 2in. x 3in. MM 51 x 76, Filter Length 2 3/8in. MM 60, Flange Length 5/8in. Flange Type Centered


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Manufacturer's Part Number	RC-2490
CARB Approved	No