Will this spoiler interfere with the trunk seal or liftgate closure?

The AC-S profile is designed to sit within the factory rear overhang without impacting trunk operation. Before installation, dry-fit the piece and check clearance at the hinge points and seal contact areas — your specific installation may vary based on any existing body modifications.

Should I use adhesive or drill through the mounting points?

Both methods work depending on your preference and the mounting tabs on your vehicle. Adhesive allows for clean removal later; drilling provides permanent security. Surface prep is critical either way — sand the bonding area thoroughly and ensure it's clean and dry before committing to your chosen method.

How stable is this at highway speed?

The AC-S lip is engineered for visual impact, not aerodynamic downforce. At highway speeds, it remains stable when properly secured. Ensure all mounting points are fully engaged and fastened to eliminate any movement or vibration during normal driving.