I had a set on my camry, they made no difference between them and a set of brembo blanks with a good set of perfromance pads. Sure they dissapate heat faster, but god help you if they warp you might as well throw them out. If you went from oem chevy parts, of course there will be a difference.

 

Cross drilled and or slotted rotors can work better in high temp applications to dissipate heat, I LOVE thesr rotors, buts its mostly a cosmetic thing, rotors like these were designed for temperatures that our rotor (hope and pray) will never ever ever see.

 

Yeah... its the hunting rig and towing a 4horse trailer down a steep gravel grade.. brakes get hot.. the OEM chevy ones are actually a great brake, only upgraded for extra heat dissipation and the added braking power.

 

but, as far as the improper cuts that actually connect with the drilled holes (on one side) - is this a problem as far as safety?