APDTY 89060413-TSB2 Intake Manifold Leak Repair Kit Includes Upgraded Green Gaskets 2 Knock Sensors & Sealant (All ACDelco Parts; Bolts Not Included; Repairs TSB 02-06-04-023A; Solves DTC P0332) TSB2 Kit Solves The Common Knock Sensor Moisture Intrusion Problem Includes GM Upgraded Green Gaskets To Prevent Future Intake Manifold Vacuum Leaks Includes 2 New OE Knock Sensors Includes RTV To Build A Moisutre Damn Per TSB Intake Manifold Bolts Sold Seperately See APDTY 112685