Will this interfere with my rear trunk lid or hatch operation?

No. This wing mounts to the existing spoiler base and sits within the factory envelope. Verify clearance with your trunk when fully open before final tightening, but fitment is designed to avoid interference with standard operation.

What's the mounting hole pattern, and will I need new fasteners?

This wing uses your vehicle's factory spoiler mounting holes. Inspect your existing hardware during installation—if your fasteners are corroded or damaged, replace them with stainless steel bolts of the same diameter. Refer to your vehicle's service manual for proper torque values.

Will this wing stay stable at highway speeds?

Yes. Single-piece carbon fiber construction provides the rigidity needed for aerodynamic stability. Ensure all fasteners are tightened evenly and securely before driving. Periodically check hardware tightness after the first 100 miles and then every 500 miles until you confirm no movement.