If your car is over 3000 lbs you should stay away from drilled rotors. They will crack - and a crack can lead to a catastrophic brake failure. Gas slotted are typically better for heavier cars.
Size of pads typically has little to do with stopping distance. at a certain point it doesn't help you stop any faster. The rotor size is typically what dictates whether you have fade or not. The larger the size, the better the heat sink, the less likely to boil your fluid, the less likely to have a spongy pedal.
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"If you can make black marks on a straight from the time you turn out of a corner until the braking point of the next turn, then you have enough horsepower"
-Mark Donohue
