Milspec hard-anodized valve guide and stem

such as C02 drag racing or compressed air application

350Z or S-Chassis hub with bigger CV joint

The ProPort was a result of over 25 years of Blow Off Valve manufacturing experience and 12 months of internal development

but a deeper insight into the boosted system on a global level

BOV Race Port Gen-V Supercharger - Blue JR42 Milspec hard-anodized valve guide andThe Race Port is famous for being an amazingly small and light BOV for supercharged competition level engines. Featuring our unique collar design and internal flow structures, it is 50% lighter and 25% smaller than the competition while flowing 330 CFM making it the highest flowing BOV of its type on the market. The supercharger specific Race Port features a soft spring so it can stay open at idle, when the supercharger is still producing boost.