Originally Posted by zcostilla

Upgrading the calipers will not cool your brakes better if you use cheap rotors. The one advantage the TBU upgrade, regardless of which caliper size you choose, provides is a thicker rotor with a larger center ventilation gap between the two braking surfaces (they use the same rotors, which is why I went with the 199mm S13WE rotors to keep my stock wheels). But if you ride the brakes, it will still generate a bunch of heat. And if you aren’t flushing your brake fluid regularly, the boiling point goes lower and lower as it collects more moisture, making the fluid ineffective and cause fading issues sooner. Everything I’ve read from the experts say to get quality rotors either way to slow down heat build up due to better metal composition.