How do they compare to the Brembo 6p gt setup. Which is more like a race kit.
I would read Vorshlag's forum on their track cars the S197 and S550 in particular and you will come away with a good understanding that the factory brakes while good are nothing compared to a true competition kit. The factory uses cast calipers vs a billet caliper, he explains how the aftermarket kit will make pads last longer because of the flex and distortion. He puts a lot of good info out there for people to read if they take the time to do so, he will do trial and error and show you what happens and give a good explanation why and how to correct it.