LS1 Throttle Bracket For Sheet Metal Intake Manifold Designed to fit 102mm sheet metal intake manifolds for cathedral ports 3/8 inch thick billet aluminum support bracket and 1/4 inch thick billet aluminum throttle brackets Compatible with all sheet metal intakes including Sniper Allows for standard throttle body placement or upside down throttle body placement to gain more hood clearance Includes one support bracket, two throttle front brackets (one for standard placement and one for upside down placement), and all necessary mounting hardware For LS3 Throttle Bracket, use 551447