the "cop" motor is better described as the ER6 sportbike motor because Kawasaki uses that motor across various model designations world-wide...ER6F, ER6N, Ninja 650, EX650, and so on.
these motors have more horsepower and torque than the stock Versys motor, including the new spec 2015-16 motor. before anyone emphatically states that the HP/torque curves aren't right for this kind of bike, forget about it...y'all are not about to win that argument here.
I'm sure it's in here somewhere, but how much difference are we talking about? Is the torque curve similar to the Versys, and just more of it, or does the curve change much?