What is the reason for replacing the stock calipers? Is their clamping force not suffiecient to take advantage of the larger rotors? Or is the weight the defining factor. I am trying to decided if I should get only rotors and pads instead of a full kit. Thanks

 

Basically, people want bigger calipers for bigger or more pistons which = more stopping force. It also means bigger rotors which also translate to more surface area to disappate heat and help it stop. The G is heavy, so bigger brakes are nice when you make more power, i.e. supercharger/turbo or heavy N/A work. Or .if you're doing track duty offten.