ronarndt

Check the cost of replacement front 4-piston calipers before you go apeshit over them. If you can't rebuild them- which is usually the case, since the lower piston gets moisture corrosion- you're looking at about $400 per caliper for new. Used ones in good condition are pretty scarse.

drago86

The 4 piston calipers and larger fronts/ vented rears are alot harder to fade

NZConvertible

Finally, someone who understands...

M5150

heres the difference, say you're driving down a twisty road with the 1 pistons, eventually if you're driving hard enough, it will get to the point that you can press the brake pedal all the way to the floor without locking. With the 4 piston brakes, this will take A LOT longer, and brake feel will also be maintained for a longer duration of time.....

bottom line, theyll feel the same the first time 100-0, but afterwards, the 4 pistons are clearly the winners......

NZConvertible

You're absolutely right, except that I believe you will notice a significant difference on the first hard stop, which will get bigger with each successive application. That's what an extra inch of disc diameter (front) and larger pad area will do.

Something else to remember if you're turbocharging a base model: Mazda only put the smaller brakes on the lightest, least powerful model. That's not a coincidence!

M5150

ya, the larger brakes have more torque