Somebody is picking up on the purpose of larger brakes and additional variables on how to make them work to the efficiently and properly.
But seriously, Bigger calipers (4 or 6 piston) have a stronger bite, equal application of pressure on the pad/rotor, cool fluid better, prevent fade and are generally lighter than OEM components. Also, they usually are matched with a performance oriented pad and lightweight and larger rotor with a better design for cooling. So as a whole, they can take a continuous beating and still perform.
My '00 has stoptech 4 piston on the front and when I went swapped OEM fronts on the rear, it really transformed the car's ability to quickly slow from high speeds and not have fade. I had SRT at all corners on my '99 ACR and I think this might be a better set up. It's really nice having confidence in braking with a Viper because most of us have been in situations where that wasn't the scenario.
Tires, wheels, fluid and alignment also play a major role in stopping . . . along with driver mod.