As @K_Phamo showed, the torque peaks in the upper 2000's but holds throughout the mid-range. You get a smooth, fat torque curve from 2-5k rpm and not at all like the older style of Evo's/STI's where nothing happened until 4.5k rpm. You get that power "NOW!" without having to rev out. Over the last decade, the n54, n55, s55, and b58 have all had small turbo(s) and so don't have turbo lag nor do they breathe well up top. BMW designs for that silky-smooth power reputation they earned with their N/A motors. This small turbo size has the downside that torque and horsepower falls off quickly near redline (look at the dyno graph at 5200 and at redline). When stock or lightly modded, a lot of people in the n5x platforms were shifting as early as 5800 to keep torque up. I'm not saying this is fastest, but it felt faster to some. On the 2jz platform, people typically dump the stock MK4 turbos because the turbos became the restriction north of 400whp and same with n5x.
