A larger surface area (bigger rotors & pads) means that you have more gripping area. This will result in a quicker stop. A better pad will only do so much. Since this isn't for the track, there is not much pad difference when it comes to cold pads. I have sticky tires and new pads but, my much larger wheels, due to the extended rotational mass, causes the car to stop 5 feet further!
SKAbone69, thanks for the heads up. My car isn't listed as compatible but, I will read the post several time and see if I can figure something out. Probably not yet worth a shot.