A good friend of mine worked for Bosch Brakes ABS division.
He says for best performance
1) ALWAYS run OEM pads
2) ALWAYS run OEM Tires
3) ALWAYS run orig. sized Rims/Tires
3) Try to never use ABS.
It seems that they do extensive testing on OEM pads and tires to get the ABS program just right. Adding sticky tires, or better pads (bigger rotors too) will just mess with the ABS programming.
I wouldn't be surprised if some enterprising aftermarket company started "Burning Chips" for ABS programs to use different sized rims, sticker tires and better pads.
