Athena Polaris Scrambler 250 73.44mm Forged Racing Piston 2017-lincoln-mkz-select-esi3161469 The included massive air filter

The included massive air filter is surrounded by an open-element XLPE (Cross-linked Polyethylene) polymer housing that minimizes warm engine air for maximum performance

The system includes AFM valves

Includes polyurethane bushings and CNC machined 6061-T6 aluminum brackets

Accommodates Factory AFM and NPP Exhaust Valves (Valve Motors Not Included)

ACL WHEN STOCK EXHAUSTED USE 4B2451A-

Athena Polaris Scrambler 250 73.44mm Forged Racing Piston 2017-lincoln-mkz-select-esi3161469 The included massive air filterAthena, leader in producing motorcycle spare parts for over 40 years, unveils its new range of 4 stroke off road forged pistons made by reverse extrusion. Produced with cutting edge CNC machining tools, which ensure dimensional tolerances of less than 0. 01 mm, Athena pistons are made of special high performance materials (nickel, silica, and aluminum alloys) that guarantee the same reliability of the OE piston, while at the same time providing