MMisencik157

Stoptech specifically chooses piston sizes that are optimal for each car. Im almost positive you doesnt make an ST-60 caliper optimized for our cars, you can only get the ST-40 with two different rotor options (328x28 that fits 17" wheels and a 355x32 that requires at least 18" wheels). A 6pot caliper that isnt optimized for the car will be much worse that a 4 pot that is. If you track the car often I think its worth it. If you're just street driving you will never notice a difference (if you already have ss lines) and it will be purely a looks thing.