It does not matter. If you put new pads on rotor's that had grooves in them it is going to cause problems. You need to at least get the rotor's resurfaced before putting new pads on. When you put the new pads on the rotors that were engraved it probably put grooves in the pad also.


You may be able to get the rotor's resurfaced depending on if the've ever been resurfaced before and how deep the grooves are.