A few months back my friend and I raced my 04 WRX stage 2 and I destroyed him from a dig and a roll with his 02 Mustang GT X pipe and cat back. We raced again with my new stock 06 vs his car with the same mods as before. From a 15 mph roll he got me by 2 cars til about 100mph, from a dig I beat him by 2-3 cars by 100mph. I launched at 5k and got a pretty good jump on him. My cars was broken in prior to this race 1600 miles on the odometer. I think that I did pretty well since my car is stock.