• Billet aluminum throttle body base plate assembly, 1-3/4"
• Designed for 4-corner idle and maximum air-flow
• Slabbed teflon-coated shafts & bearings with stainless steel throttle plates
• Anodized red for long lasting looks & protection
• Comes complete with power valve blow-out protection, adjustable secondary cam bracket, main body gasket & flange gasket, 6 mounting screws & linkage kit (includes, super progressive & 1:1 link)