I replaced my rear spoiler led light today and could not believe what I found, RUST around almost every hole they drilled. I'm not sure if it was not installed right or a defect in the product, I'm guessing the first one. I cleaned it up the best I could and used a clear sealant to make sure no water gets to those holes again. So if you get an after market spoiler put on, make sure it's done right or better yet do it yourself, doesn't look like too hard of a job to do.

 

They are supposed to paint the holes they make and let it dry before putting on spoiler.

Erik