How to Install Airaid QuickFit Air Dam - SynthaFlow Oiled Filter on your Sierra

1. Disconnect the negative battery cable. Loosen the hose clamp on the end of the factory intake tube at the Mass Air Flow sensor, next loosen the hose clamp that holds the Mass Air Flow sensor to the factory air box.

2. Remove the Mass Air Flow sensor from between the factory intake tube and the factory air box. Use caution to retain the rubber coupler on the Mass Air Flow sensor.

3. Without disconnecting the wiring harness, set the Mass Air Flow sensor out of the work area. Next rock the factory air box back and forth, lift it up, and remove it from the hold down grommets. There are no bolts holding it down.

4. Remove the factory air box from the vehicle.

5. Remove 4 bolts, and remove the factory airbox mounting plate.

6. Assemble the two Cool Air Dam panels (#2) and (#3) using the five supplied screws (#9), washers (#10), and nuts (#11). Apply the Airaid Foil Decal onto the Panel as shown.

7. . Install the filter adapter (#4) into the CAD using three button head bolts (#6), and washers (#7).

8. Install the assembled CAD in place of the factory airbox using four bolts (#8) and washers (#7). Do not over tighten the bolts.

9. Re-install the Mass Air Flow sensor and coupler onto the air filter adapter (#4), as shown and tighten the hose clamp. Next re-connect the factory intake tube to the Mass Air Flow sensor, and tighten the hose clamp.

10. Install the Airaid Premium Filter (#1) onto the filter adapter (#4), and tighten the hose clamp. Next install the weather strip (#5) onto the top of the CAD as shown. For ease of installation start at the fender, and work towards the radiator.