Will this interfere with the factory bumper cover or air dam?

The W-1 design mounts using factory attachment points, so there's no interference with OEM components. However, verify clearance with your specific bumper assembly before installation — some aftermarket covers may have slightly different geometry.

What's the best adhesive or mounting method for this lip?

Use mechanical fasteners (bolts or screws) through the factory mounting points for maximum durability. Adhesive-only installations are not recommended for front lips, as road vibration and airflow create stress that bolts handle reliably. Your hardware supplier or service manual will specify the fastener type.

How does this perform at highway speeds?

FRP lips are engineered to handle sustained airflow and vibration without flex or lift. The W-1 design is relatively modest in extension, so downforce effects are minimal — it's primarily a styling upgrade. Secure mounting through all factory points ensures stability at speed.