Uni NU-4115ST Multi-Stage Competition Air Filter propulsion-driveline Inner ring is CNC machined

Inner ring is CNC machined from 7075 T6 Aerospace Alloy and Anodized Black to prevent corrosion

Old school rubber knee pad kits also available

and fits all existing SR-Series mounting options

(Flat Top) X-ring Package (8

Uni NU-4115ST Multi-Stage Competition Air Filter propulsion-driveline Inner ring is CNC machinedUnsurpassed in airflow, dirt stopping and overall performance. Fits in stock air box exactly like OEM filter. Traps dirt and dust in 2 layers of foam. The large pore, pre filter captures the bigger particles. The small pore, inner filter prevents any engine wrecking grit from reaching the cylinder. Features the Ultra Seal grease groove on the sealing surface. Made in the U. S. A. Vehicle Fitment: 1985 1987 Honda ATC250ES Big Red