Your CVO deserves the best components available, and you should never worry about a cracked or warped fuel rail giving your performance engine improper flow. Machined out of 6061 Aluminum, anodized black, and fitting all stock M8 Oval Port fitments, the S&S Cycle Billet Fuel Rail Kit is a direct replacement for the plastic system that comes stock on 2023-up M8 CVOs. These upgraded kits provide a 44% increase in fuel flow capacity and dampen fuel pulsing, which results in a smoother and more efficient ride for you.