Spoiler installation involves cleaning the mounting surface with isopropyl alcohol, marking the position with painter’s tape, and using 3M automotive adhesive tape or drilling bolts for a secure fit. Proper alignment, cleaning, and sometimes using adhesive promoter are key for a durable, weather-resistant installation.
Key Installation Methods
- Adhesive Tape (Common for Lip/Ducktail Spoilers):
- Preparation: Clean the trunk surface thoroughly with soap, water, and then isopropyl alcohol to remove grease. Ensure the temperature is at least
65∘F–
72∘F for optimal adhesive performance.
- Positioning: Mock up the spoiler, using painter’s tape to mark the exact corners and center.
- Application: Apply 3M adhesive tape to the spoiler, peel back only the ends, and position it. Once aligned, pull the remaining backing off while applying firm pressure.
- Finish: Use a hair dryer or heat gun to ensure the tape adheres properly to the edges.
- Preparation: Clean the trunk surface thoroughly with soap, water, and then isopropyl alcohol to remove grease. Ensure the temperature is at least
- Drill/Bolt-on (Common for Larger Wings):
- Alignment: Position the spoiler, ensuring the mounting holes do not interfere with internal trunk, wiring, or trim.
- Marking & Drilling: Use masking tape to mark drilling locations, then drill pilot holes followed by larger holes for the bolts.
- Protection: File down rough edges and paint the bare metal to prevent rust.
- Securing: Use foam gaskets or silicone sealant for a watertight seal, then fasten with the provided bolts.
Essential Tips
Curing Time: Allow the adhesive to cure for at least 24 hours before driving at high speeds or washing the car.
Use Two People: Having another person helps ensure precise, symmetrical alignment.
Adhesion Promoter: Apply 3M adhesion promoter to the surface for a stronger bond.
Wiring: If the spoiler includes an LED light, wire it to the brake light or tail light circuit, ensuring proper routing through the trunk lid.
