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How to Install BBK Billet Mass Air Meter for Factory Airbox and 19lb Injectors on your Mustang

Installation Time

30 minutes

Follow these instructions carefully to ensure correct fitment and operation.


All BBK Mass Air Meters are designed to be a direct bolt on with no additional adjustments or tuning required. Be sure to verify that the calibration of the meter is correct for your injector size. Using a meter that is calibrated for a different injector size then what you are using can cause serious damage to your engine.

Steps for 1987-93 Ford Mustangs

STEP 1: Unplug the mass air meter harness by squeezing the locking clip while pulling on the plastic connector. NOTE!!! Do not pull on the wires; only pull by the plastic connector. The plastic connector has the work PUSH printed on it for ease of reference.

STEP 2: Disconnect the mass air meter from the induction system by loosening the hose clamps that attach the hoses/couplers to both ends of the mass air meter.

STEP 3: Remove the (2) bolts that attach the mass air meter bracket to the strut tower.

STEP 4: Remove the original mass air meter and bracket from the vehicle all as one piece.

STEP 5: Install the BBK Mass Air Meter into the vehicle by tightening the original hoses and couplers for the induction system over it.

STEP 6: Re-establish the electrical connection simply by plugging the wiring harness into the meter, or wiring extension where applicable.

Steps for 1994-04 Ford Mustangs

STEP 1: If you are working with the stock air box, you will need to disassemble the air box by releasing the clamp, then unbolting the mass air meter from the plastic base disc.

STEP 2: Unplug the mass air meter harness by squeezing the locking clip while pulling on the plastic connector. NOTE!!! Do not pull on the wires; only pull by the plastic connector. The plastic connector has the work PUSH printed on it for ease of reference.

STEP 3: Disconnect the mass air meter from the induction system by removing the (4) bolts that attach the mass air meter flange to the air box/CAI and loosening the clamps that attach the hoses/couplers to the ends of the mass air meter.

STEP 4: Attach the BBK Mass Air Meter to the induction system using the original (4) Bolts that attach the mass air meter flange to the air box/CAI and tighten the clamps that attach the hoses/couplers to the ends of the mass air meter.

STEP 5: Re-establish the electrical connection simply by plugging the wiring harness into the meter, or wiring extension where applicable.

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