Originally Posted by Shawn D.

Controlled by a shop that does cryogenic processing. Here's just one site on the subject: http://www.metal-wear.com/


The supposed "softness" of MB rotors is hearsay, IMO. Where's a credible source for such a claim? It's not really hardening anyhow, but rearranging the crystal structure.


This is not something you can do at home.