 Step 5: Using a torx head screwdriver, remove the mass airflow sensor from the airbox. Huck that airbox in the trash or save it for a nice decoration on your Christmas tree next year.  Step 6: Reinstall the mass airflow sensor onto the stock intake tube. Reconnect the hose clamp and the wiring harness.
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 Step 7: Remove the two motor mount bolts highlighted by the arrows. Don’t worry, your motor’s not going to drop out or anything.  Step 8: Install the Focus Sport heatshield. There are mounts on the heatshield for the motor mount bolts to go through. Now attach these bolts.
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