Airspeed II Filter Adapter for Clone motor. Black anodized finish. Comes with choke bracket and hardware. After extensive testing, 8 prototypes, over 200 dyno pulls on 3 different motors, up against every adapter that we could find, the AIRSPEED adapter has proven without a doubt, positive gains and a broader power curve on box stock class clone engines, specifically with top end "drop off" common with other adapters.