O.S. Engines .21 VZ-B V-Spec Limited Edition
This O.S. Engines .21 VZ-B V-Spec Limited Edition engine have a final production run of 300 units. To commemorate this it comes with a specially modified cooling head with sixteen machined holes for lighter weight and more efficient cooling, will be anodized in gold, and the top of the head will feature custom graphics to signify all four IFMAR World Championships.