I recently replaced one of my damaged ACS Composite side skirts. I noticed right away this one is not gel coat/fiberglass like the previous versions. I can appreciate that they are finding more “efficient” ways to produce these, However, I AM disappointed that they are not as sturdy. When driving in the rain the other day, I thought I might have left my passenger door slightly ajar because the noise of water hitting the side skirt was horrendous! It’s even more noticeable because the left side directly underneath me makes almost no noise. I’ll obviously have to get used to it. Perhaps I’ll buy a new plastic side skirt for the driver’s side. At least the noise will be balanced.