GM Genuine Parts are the true OE parts installed during the production of or validated by General Motors for GM vehicles. GM-recommended replacement part for your GM vehicle’s original factory component Aazon.co: G Genuine Parts 12637620 Intake anifold Kit with Seals... GM Genuine Parts Engine Intake Manifold are designed, engineered, and tested to rigorous standards, and are backed by General Motors. Manufactured to GM OE specification for fit, form, and function Kong Performance Dual Pass Billet Lid - LSA / LS9 (KONGBILLID Ls3 ACDelco® 12637620 - Genuine GM Parts™ Nylon With Gasket Intake Manifold Fit type: Vehicle Specific The CTH current sensors convert dc and dc+ac current to an isolated voltage or mA output with fast response and precision Evenly distributes the combustion mixture (or just air in a direct injection system) to each intake port in the cylinder head for proper function