Just looked at the SR dyno curves again and definately see a dip in all 4 bikes curves, especially noticable on the torque chart. Each one has a dip low down in the powerband, all because of lean epa mapping, exhaust power valves, crappy exhaust tuning, etc. Its just that Yamaha seems to have the worst scenerio going on. Judging by the looks of that graph, you would think that the R1 would fall on its face around the time that dip takes place, kinda like a big stutter or bogging sensation, but according to many a review, no big hit is felt out on the road. I therefore think the dyno merely takes a snapshot of the curve and doesnt really reflect the on-road experience when being flogged and everything is working together: ram-air, exup, FI, ECU, etc. The motor as a package must work pretty effectively.