I remember reading on a thread before, if mazda reused a rotor housing they'd it'd be indicated with a X type stamp somewhere on the housing? I was wondering where might the stamp be located, granted this is true

 

I personally have never heard of that in my life.

 

Me Neither..... Werd.

 

Starting rumors...HA!

 

The x can be found inside and stands for X-tra special.

 

The way that Mazda signifies reused peices is that they repaint it with silver paint. You can tell the difference in a reman that has new housings (aluminum) or used housings (painted silver).