slotted cross drilled rotors..count the holes and area of the slots, deduct it from the total area of the rotor then compare it to the area of a stock smooth rotor...do you drive down pikes peak every day or autocross where brake fade would become an issue? Sell the hype, buy yourself something that will truly make some HP, like polished valve covers! "...So you got 12" slotted rotors and Brembo brakes on that thing..why? I can't even see them because you are running stock rims!..."