Do people race ATX? or take them to the track?, or is it MTX only?
in terms of horsepower or torque to the engine...more likely than not, no...but more consistent shift and lower temps make for a faster working transmission, so shifting more smoothly, with out those shift shock bumps makes for a slightly faster acceleration....you might feel the car a bit quicker...but just a bit (put that in case I'm about to have my ass torn up by the gurus of the sight "what are you, retarded?")....No, and I highly doubt you'd get any measurable gains. The cooler is more for shifting consistency and keeping tranny temps down.