The Cryogenic process has been used by the military and aviation industry since the beginning of WWII. The process is designed to relieve residual stress that is found in the molecular structure of most metal products by slowly cooling the product to -300 degrees, allowing it to "soak" at that temperature, then gradually making its way into a temper phase.
During the soak period, the molecular structure changes while the residual stress' are relieved. In doing so, Cryogenically treated materials show a marked increase in overal toughness, more stabile molecular structure, and increased wear resistance. This allows treated products last longer and increase the resistance to warpage at higher temperatures.
Cryogenically Treated Flywheels for your 1986-1995 Mustang offer a tighter molecule grain structure which adds additional strength and durability. This process gives you a longer lasting, and more wear resistant flywheel compared to a stock replacement 1986-1995 Mustang flywheel.