Beyond over rated. If you brake hard they are going to fail. The holes just promote cracks and the rotor will split. When I first got my cobra I was dumb and got Brembo drilled and slotted. Two sets actually. First set lasted three 20 minute sessions at Big willow before there was a loud “Tink” sound. Five minutes later from the other side. “Tink” Both rotors split all the way through. I even have brake ducts with blowers. I put the next new set on. Bedded them in and they lasted 3 sessions before a full split and separation from the center hub during hard braking. This put me into a full spin and contact with the pit wall.
If you just drive easy and want the bling factor, get the D&S. If you want good braking then stick with the OEM Brembos. If you want top performance then go to two piece non drilled non slotted. Alcon, Wilwood, Stoptech.
