[BR3W CITY]

From what I understand, torque management is more complex than just a "check box" in a tuning program. Although it can be completely disabled, it makes changes in fuel and timing that will remain if they aren't corrected after tq management is disabled (or in many cases now, just turned down, but still left to function....this does let you do burnouts and launches, without the obvious bogging it causes. A mail order tune can only turn it flat off, which is not necessarily the best from a performance standpoint. Tq management is also something that you don't realize until you don't have it....it can help make a fairly radical car a bit less awkward to drive in street traffic....i.e. you can accel to pass without always blowing tires loose if you give it a little much juice.