Now Offering RK Autowerks S55 Billet Crank Hub

RK Autowerks has developed a reputation of reliable, high performing components for BMW and Porsche applications. Their team of engineers design, manufacture, and test of their components in house using state-of-the-art systems. When looking for a replacement crank hub to build up your S55 motor, RK Autowerks can deliver the level of quality and performance that you are looking for!