BLOX Racing Universal Billet Aluminum 6 Port Vacuum Manifold Block (BXAC-00403-BK)Founded in 2003, BLOX Racing is a relative newcomer to the import and sport compact aftermarket. However, in its short time it has quickly established a foothold in the marketplace and developed a reputation as a high quality aftermarket parts manufacturer. BLOX Racing spends countless hours designing, engineering and testing so each product is able to offer the enthusiast both form and function. The manufacturing processes used either meet or exceed