aFe Power Silver Bullet 46-33001 Ford F-150 Throttle Body Spacer Precision machined from 6061-T6 billet aluminum Serrated/Helix Combination Design for optimum airflow into the combustion chamber Includes gasket and hardware This product is 50-state legal (CARB E.O Number D-550-11) Fits the 2-Valve 2004-2010 Ford F-150 V8 4.6L only. Does not fit 3-Valve applications.