How to Install a BBK Mass Air Meter for Cold Air Intake and 19lb Injectors on Your 1986-1993 5.0L Mu

1. If you are ready to install this, you should have already purchased your aftermarket Cold Air Intake, which is required for installation. With your stock intake and mass air meter removed, insert the upper tubing of your CAI securely into your throttle body; the pipe needs to be able to move relatively easily, but not fall out.

2. Using the image below for reference, slide the O-rings onto either side of your BBK Mass Air Meter; smaller on TB side and larger on air filter side. Slide on your (4) hose clamps and tighten down snugly so they don’t fall off, but not completely using your flathead screwdriver.

3. If you are installing a fenderwell mounted Cold Air Intake like the BBK CAI used in this guide, it might be helpful to have someone lie under the car and support your air filter to keep it from falling back into the fenderwell. Be sure to already have it threaded through the plate that mounts to your fenderwell.

4. Insert the upper CAI tubing into the O-ring on the smaller side of the BBK Mass Air Meter. Be sure that the BBK logo on top of the Mass Air Meter is right side up when looking down at it from the front of your Mustang. Tighten the hose clamp snugly but not completely at this time.

5. Move your upper intake pipe with Mass Air Meter attached to a slightly up-angled position. Do the same with your lower filter pipe.

6. Bring the lower filter pipe together with the larger O-ring attached to your BBK Mass Air Meter and tighten the hose clamps into place. NOTE: Image below does not show the final clamp in place yet.

7. Tighten down all hose clamps completely at this time.

8. Plug the wiring harness back into your BBK Mass Air Meter using the adapter that came with the Mass Air Meter and be sure it clicks into place.

9. With the engine running, check for any leaks in the O-rings around your Throttle Body and Mass Air Meter.

10. You are now completed installing your BBK Mass Air Meter.

Installation Instructions written by AmericanMuscle customer Logan Mitchell 3.21.12