Just spend a few extra bucks and get the ATE super blue brake fluid, or believe it or not, the Ford heavy duty brake fluid, along with the better pads and lines. Many professional racers use the Ford brake fluid. I've always used high performance rotors on my Porsche when racing- yes, it does make a difference! less unsprung weight etc, but at a cost. Its not worth it on a street truck, especially if you ever plan on going off road with it-thats why Porsche doesn't use cross drilled or slotted rotors on the Cayenne, a more than capable off road vehicle, because you can get stones caught in the slots or holes, and that'll put a nice dent in your wallet. Replacing the pads and possible rotors becuase of the stone. The 99 4runner has drums in the back anyway, so make sure you don't go crazy on the front without upgrading the rears somehow.