S&S Cycle M8 Models Billet Head Breather KitThe crew here at S&S Cycle have been working on our new Billet Head Breathers, crafted from premium 6061 aluminum and anodized in the iconic S&S Blue. Our new breathers feature a dual O ring design, ensuring a superior seal in the head, minimizing leaks, and maximizing performance. We also developed a unique Labyrinth design to significantly reduce oil pass through, keeping your engine running cleaner and smoother. This Part Fits: Year Make Model