might as well bump this with latest video which is 4 seconds better than prior best.
went from 2:37 best in 2011 to 2:33 this summer during a NARRA event. I was in class TT2. Major change was driving harder and going from hooier R6 (295 front, 315 rear) to hoosier A6 (275 square). Still stock motor z06, stock shocks, springs and brakes, T1 front swaybar (stock rear bar).
See the weekend video wrap up (fast forward to 8:22 and 15:40 for my sections):