I have just noticed a few problems that my be due to bad install or design flaw. After getting a spoiler installed I noticed that the bolts for the spioler (pic.C) are hiting the metal around the trunk and denting it and cause the metal to be exposed (Pic.A and B) and therefore lead to premature rusting. Anyone else have this. the other issue has more to do with stone chips in strange areas. I'm getting stone chips on the edge of the trunk lid, right where it meets the tailights (Pic.D) . Anyone heard issues concernig this? TIA.

 

May not be the reason, but do you know if they changed the springs to heavy duty springs in the trunk? I remember the one that came with the car was grey, and the heavy duty one was black which meant it was stronger so it could support the spoiler

 

Were these spots from the spoiler bolts there right after the spoiler was installed or a few days later after a few opening and closings? It almost looks like maybe they drilled the holes for the spoiler from the outside-in and the drill bit bottomed out on the quarter panels leaving those nasty looking scars. I have added a little to your pic, and if you look closely, the black bump stop, no matter how it is adjusted should make contact with the circle right below those scars and keep the trunk raised up enough so that the bolts do not make contact with the car.

 

I think you actually may have solved it. I took a look at those dents and you can actually see the swirl marks that a drill would leave behind. Time to go to the dealer and let them know of their crudy work. Thanks.