Cryogenic Treatment for a Tougher Rotor

StopTech’s CRYO-STOP process treats the rotor casting with a deep-freeze cryogenic cycle after manufacturing, a process that refines the iron’s internal grain structure. The result is a rotor that resists heat-related warping and cracking better than an untreated casting of the same design.

An Invisible but Real Difference

You won’t see the cryogenic treatment looking at the rotor it’s not a surface coating or a visual feature but the improved grain structure genuinely extends rotor life and consistency under repeated heat cycling compared to a standard replacement rotor.

• Rear rotor for the 2008-2010 WRX
• CRYO-STOP cryogenic treatment for improved grain structure
• Better resistance to heat-related warping and cracking
• Direct bolt-on replacement
• No visual difference, purely a durability upgrade

The RallySport Take

A smart choice for a 2008-2010 WRX if you want a rotor that genuinely outlasts a standard replacement, even though the benefit isn’t something you can see.

This Part Fits: