stock, 1st gen's will run faster times than 2nd gens. 1st gens have a 14b, much better turbo than the t25 that 2g's come with. they also have a metal bov instead of the cheap-o plastic one. they weigh alot less as well. bone stock, the cars will most likely be around a 14.7-15 flat, depending on driver and condition of the car. by the way, stock boost level is 9psi, i dont even know if 5psi is possible, i had my boost controller completely minimized when i threw a new engine in and i was still hitting 7psi.