Billet throttle body 1 11/16" Blue Alky (No Tubes) - Made from billet aluminum this throttle body is a great replacement for your worn original. Designed for 4-corner idle and maximum air-flow. Anodized blue for long lasting looks and protection. Comes complete with: ~ Power valve blow-out protection ~ Adjustable secondary cam bracket ~ replacement main body gasket and flange gasket ~ (6) replacement mounting screws ~ Linkage kit (includes, super progressive, and 1:1 link)