Wossner Piston Polaris Trail Boss 250 85-05 size:Piston A (Standard) and the original K&N High-Flow

and the original K&N High-Flow Air Filter was born

Keep this in a safe place

42oz (12ml)

Reflector printing for maximum visibility

Holds 12L per side / 15L Expanded per side

Wossner Piston Polaris Trail Boss 250 85-05 size:Piston A (Standard) and the original K&N High-FlowWossner is Germany's finest aftermarket forged piston and rod manufacturer and have over 25 years of experience in the high performance racing industry. Top European racers and FIM World Champions rely on Wossner for only the best pistons, rods and customer service. Features In house designed and manufactured; all forgings are produced in Wossner's company owned forging operation 4 stroke pistons are made using a double bridged forging design