Granatelli Vacuum Relief Valve

This is the Granatelli Motor Sports Vacuum Relief Valve, part number 451005. This valve is designed to manage vacuum pressure within your forced induction system, specifically related to the engine's valve cover. Proper vacuum relief is important for maintaining the correct operating conditions for your turbo or supercharger setup, helping to prevent issues that can arise from excessive crankcase pressure.

Built by Granatelli Motor Sports, this valve is a direct replacement part intended to fit specific forced induction applications. While it's a straightforward component, ensuring it's properly installed and functioning is key to the overall health and performance of your engine's air management system. It's important to note that this part is not CARB approved and cannot be shipped to California due to emissions regulations.