Just a warning to everyone, if you need a new rear valance for your Challenger, don't wait until after the body is painted to get it and expect it to fit well. I picked up an AMD rear valance with duel cutouts for my Challenger, and had to do a lot of banging, and some cutting and welding to get it close to the quarters. I also had to end up skim coating bondo over the valance and quarters. Also, the edges of the valance where they come upto the quarters are rounded over, where the original one was sharp. Also, the bottom holes that bolt to the center brackets aren't even close.
Here are a few shots of the top of the valance that I had to slit and bend out to match the quarters.