Will this wing stay stable at highway speed?

Yes. FRP construction delivers the rigidity needed for high-speed stability. Ensure mounting points are torqued to spec per your vehicle's service manual and verify all fasteners are seated flush before driving.

What's the mounting hole pattern, and will it interfere with the trunk lid?

Reference your vehicle's OEM trunk lid geometry and the wing's base plate before final installation. Most Dominator-style wings mount on the trailing edge and require clearance verification during fitment — measure your gap and check for lip interference during the lid-open cycle.

Should I prep the surface before painting?

Sand and prep the surface with your standard pre-paint procedure before applying your chosen finish. raw FRP condition means the FRP is clean and ready to accept primer and paint — follow your paint system's surface prep guidelines for best adhesion.