Bigger calipers and rotors are larger heat sinks. They require less pressure on the pedal to get the same results. I don't want to argue but I track my car and at the track is where you learn what you have and what you need and why. My first upgrade was prompted from boiling my brake fluid. ATE to the rescue. At the same time I upgraded to Porterfield RS-4 pads. After moving from mediocre to competent as a driver, I overheated the Porterfield RS4 pads and at 125 mph looking at a concrete wall you get religion. Stoptechs and Carbotech to the rescue. Now they don't overheat. As time goes bye, I continued to upgrade to more aggressive pads and better fluid. Tires are the limiting factor. I'm on 255/35/18 Hankook RS3's on the front and I can lock them up with the Stoptech's and I'll bet I could lock them up with the stock calipers and an aggressive pad. I'm saying a BBK is an appearance upgrade unless your track the car and are a competent driver. I'm currently using Motul 600 RBF and Carbotech XP12 pads. I finish from 1rst to 3rd (usually) in my category in competition. My rotors are spider webbed from the heat, are yours? Yes, I have replacements for when the "web" becomes a crack. I'll never try to talk anyone out of a BBK. I just want to be sure they have correct expectations for normal usage. I ADORE MY STOPTECH BBK AND WOULD BUY IT AGAIN IN AN INSTANT. Aggressive rubber and pads don't work well until they get HOT. If I try to use braking points on the first lap before the tires and pads are hot on the first lap ..... big fail moment. Hey, this is my experience, take it or leave it. I didn't know what to believe but you know what? Go to Stoptech's technical information and read up. It mirrors what I wasn't sure about until I lived it.

Les