Hmmm.... I wonder if this change actually results in any improvement in regular street use.
Not bashing anything here. I just recall reading an article in Mopar Action years back where they had a stock type single piston iron caliper on one side and a Viper caliper on the other. The car stopped straight during street stops.
If the only advantage is for track use, 150 mph stops, I don't know when I'd be able to use the extra force.