As previously mentioned, no NA Crossfire has broken into the 13's without the addition of NOS.
If one has, then it must have been some "special opps" assignment that nobody here on the forum was privy to.
I think 14.38 was the lowest ET published, without a time slip as proof. (But the driver did take us ALL along for the ride down the 1/4 mile thanks to his camcorder) when he did it.
As far as I can remember, only one SRT6 has made it to 180 mph. and it was modified.