Hey guys, I had the same problem tonight except I have a right-off-the-lot 2015 Mustang
GT. For the life of me, I could not get the hood to close. I am not sure if this is what V6in was explaining, but I turned the little rubber bumpers 720 degrees so they were a tad shorter. The hood still didn't close with just pressure, but it finally latched when I threw it down from about a foot high - I do see a tiny gap now where the hood sits, but I don't think I had many options here! Now if I can just get rid of the cold brake screeching that wakes up the neighborhood... Ironically, I got rid of my old car for this $40k car for the same reasons.