I have seen that happen a few times on both the dragon and the pro....normally from bottoming really hard on the rear skid, might look at the frt a-arms, if all the powdercoat if bubbled off right by the ball joint they to have been bottomed hard enough to flex the arms..pretty simple fix on the tunnel, hang it by the rear bumper(hook a strap at both sides so you dont break/crack the carbon fiber),,, and slowly add weight to the top of the tunnel while carefully tapping(light taps) the dents out, working the whole area as you go...should come right back straight...then reinforce... something like this....