Was randomly paired up with a 2012-2013 ZL1 at the track. Thought I was going to get pulled, but he ran a 12.99 with a 1.9x 60' to my 12.7 with a 1.8x 60'. The guy couldn't believe I was only a light bolt-on car. Watched him make two more passes and he ran slower, something in the 13.3-13.4 range. He was bone stock except DR on the back. My mods are boss intake, CAI, X-pipe, e85 and DR. DA that day was in the 7000ft-7500 range.