If my car were here now, instead of coming in May, you could have my aero strakes. I think they look dumb; color doesn't match the car, and the angular shape is out of harmony with rounded lines of the rest of the car. I'm having the dealer remove mine before I pick up the car; since I don't plan on going outrageously fast, I don't think I'll need extra aerodynamic assistance.
If you want to replace your strakes,
Suncoast or
Brandywine or Sunset or your dealer can probably accommodate you.