I took my 06 6spd GTO for the first time and was running 14s thanks to the crappy stock 235s. Fast forward a couple years with full exhaust, a very small cam (30 rwhp gain), intake and better street tires. The car would run consistent 12.6-12.7 around 111 with a 1.8-1.9 60'.
I have the time slips but not here at work, I'll upload them later in this post. Might even upload my R1 times because it is in the same stack I believe. Here is a picture of the old Goat: