I used to own an '04 GTO with headers/exhaust/tune. The car could beat the '05 GTO with the LS2 by about a length all the time. I took it to the track and ran 13.6@99 mph. Traded that in on an Z06 which ran 12.6@113. IMHO the crossfire is right between those two cars. Most GTO guys are running mid to high 13's with there LS2's. If they get a good launch then lower 13's but those cars are not easy to launch. I think the SRT/6 should (stock for stock) be able to get an LS2 by 2-3 lengths with equal drivers.

Here is my video's at byron...
http://s123.photobucket.com/albums/o...nt=Byron06.flv