one of the main reasons for add'l piston calipers is to be able to use a larger pad & be able to clamp it evenly, a 12 piston caliper can have a pad that covers almost half the rotor, but at that point there isn't enough rotor left for heat disapation, theres a point of diminishing returns, 12 pistons are more show than go, err, than stop that is
.... when pads get that large it gets very hard to really clamp them evenly too, 12 pistons are pretty retarded if you ask me
a 4 piston fixed caliper will be a big improvement over a single piston sliding caliper like we have stock, the 14" rotor will also disapate heat better, that alone will bump you up to having great brakes. a 6 piston will have more clamping force & a little more pad surface area so it will be even better still, not a night & day difference, but it is a bit less pedal effort because of the added pad area. the 8's even more so, with a 15" rotor there really really awesome, but probably more than you'll ever need or be able to take advantage of too, overkill maybe, but the ultimate, anything bigger is retarded
so
4 piston = really good brakes
6 piston = awesome brakes
8 piston = totally sick all out killer brakes
12 piston = dude, wtf?
---------- Post added at 01:26 AM ---------- Previous post was at 01:16 AM ----------
also, the number of pistons are not the only determining factor, pad compound & rotors play a big part too...
