K&N Custom Air Cleaner Assembly 9 x 2-3/4"Fits Neck Size 3-1/16" (78 mm) - KN60-1090Brand: K&NPart Number: KN60-1090Description: K&N's custom air cleaner assemblies are designed with the racer in mind. They incorporate good looks as well as the superior air flow that you expect from K&N. These custom air cleaner assemblies are designed for use with any engine that uses a round element air cleaner housing. They incorporate our famous K&N Air Filters and provide more air flow than other assemblies of this type. Available in 4 different designs, the perfect assembly is sure to be found here. Each complete assembly comes with base, element, and top plate. Part KN60-1090 Product Specifications Product Style: Custom AssembliesColour: RedFilter Height: 2.75 in (70 mm)Filter Material: Cotton GauzeNeck Flange: 3.063 in (78 mm)Overall Height: 4.12 in (105 mm) Replacement Filter: E-3530Size: 9 InchStyle: StandardTop Material/Finish: Stainless SteelTop Style: Metal Assembly Footnote 1: 3/4" Vent Tube On BaseHeight: 2.75 in (70 mm)Inner Wire: NoInside Diameter: 3.063 in (78 mm)Outside Diameter: 9 in (229 mm) Total Height: 4.12 in (105 mm)