Dry cryogenic processing physically transforms the micro-structure into a new, more refined, uniform substructure, which is stronger.

Deep Cryogenics has enhanced the racing engine parts more durable and even for some instances doubled and tripled their productive life.
Cryogenics temperature occurs abovemolecules change and make all the retained austenite turn to martensite. Dry cryogenic must physically transforms the micro structure into a more refined, uniform substructure.

Source:http://www.300below.com/press/magazine-articles/short-track.html