Quote:
Originally Posted by BoostedBB6
Drilled/Slotted rotors will DECREASE breaking efficiency unless you also increase the rotor size to compensate.
Whenever you drill or slot a rotor you are removing surface area and that means less friction generated. They only aid in cooling of the brakes to fight fade.
Unless you are doing some SERIOUS track driving, or use your brakes to the point where heat dissipation of a stock blank is surpassed, there is no reason to use a slotted or drilled rotor other than for a look.
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Drilled/slotted rotors aren't always good.
Just look at McLaren P1's Akebono brakes.
Toyota Brembo Formula 1 Brakes
