2018 Challenger SRT 392 purchased in Jan 2020 with only 80 miles on it. It now has a 1100 miles on it. Since I have all this free time I decided to do the brake pad swap from the Brembo pads to the Powerstop Z26 pads. Swap went fine but the Brembo pads were not in good condition. The parts I marked in red are where the pads have broken apart. When I first test drove the car, there was a vibration in the brake pedal at speed and when applying brakes so I told the dealership they would have to fix that before I took delivery of it. The problem was gone when I got the car and it looks like all they did was drive real fast and do some hard braking(max speed was showing 97mph). This condition of these pads bothers me because if for some reason I don't like the Z26 pads, I won't be able to swap these damaged ones back in and I'm curious what caused them to fall apart in the first place.