Fair point. The only other explanation I can think of would a completely psychological perception of "zip" caused by the altered throttle map in "sport" mode if there is such a thing. People swear by the pedal commander, when all it does is makes the car think you're pushing the pedal further than you are, which is a common change in a lot if factory and aftermarket tunes.5% gearing difference is offset by an almost identical tire circumference difference, essentially a wash. Even with the same tire size, 5% is not going to be noticed from the driver's seat and probably not with a stopwatch 0-60 unless it goes down to tenths of a second.
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