Will this trunk wing interfere with my existing trunk seal?

The Evo profile sits relatively flush with the factory trunk panel. Before final installation, test-fit and verify clearance at both corners where the wing meets the trunk surface. Minor spacing adjustments via shim or gasket material are common with aftermarket wings and easily handled during install.

Should I adhesive-bond this or drill through the trunk panel?

Both methods work. Adhesive (polyurethane or two-part epoxy) offers a clean install with no panel penetration; drilling provides mechanical security. The choice depends on your comfort level and whether you plan to remove the wing later. If you adhesive-bond, properly prep and degrease both surfaces for a lasting bond.

Will this stay stable at highway speeds?

FRP wings perform well at speed when properly installed. Ensure full contact across the mounting surface, use consistent fastening or adhesive coverage, and verify the trunk itself is straight and undamaged before mounting. A secure bond or mechanical attachment prevents flutter and movement.