The StopTech CRYO rotors are a direct replacement to the factory rotors found on your 2017-21 Si Coupe or Sedan, and provide improved braking performance both in wet and dry braking.
Cryogenic (CRYO) treatment is a one-time stress relief process that involves both cold and heat cycling of the brake rotor. Using a proprietary computer-controlled process over a 24-hour period, the cryo machine gradually cools the rotors down to -300 º F, then gradually brings them up to over +300º F, and finally back to room temperature. This conditioning of the rotor improves its service life, especially in fleet and emergency vehicle applications.
The black e-coating on the rotor also protects against corrosion, while simultaneously providing a sleeker look.