StopTech Sport Rotors are also available with an optional cryogenic treatment. Although cryogenic treatment is invisible to the naked eye; many fleet customers are sold on its ability to extend the service life of the brake rotor. Deep cryogenic treatment is a one-time process that permanently improves the performance and wear characteristics of metal components; from brake rotors and engine parts to machine tools and gear sets. All new StopTech Sport Rotors may be ordered with cryogenic treatment for an additional fee. Symmetric vane; split-core castings for uniform heat distribution. Black E-Coat anti-corrosive coating protects much better than competitors spray paint. Double disc ground friction surface for optimal performance and serviced life Symmetric vane; split-core castings for uniform heat distribution; Black E-Coat anti-corrosive coating protects much better than competitors spray paint; Double disc ground friction surface for optimal performance and servicde life 2008 - 2013 Infiniti G37, 2014 - 2016 Infiniti Q60, 2009 - 2009 Nissan 350Z, 2009 - 2019 Nissan 370Z Fitment: 2008 Infiniti G37 Sport 2009 Infiniti G37 Journey 2009 Infiniti G37 Sport 2009 Nissan 350Z Enthusiast 2009 Nissan 350Z Grand Touring 2009 Nissan 350Z Touring 2009 Nissan 370Z Base 2009 Nissan 370Z Nismo 2009 Nissan 370Z Touring 2010 Infiniti G37 Journey 2010 Infiniti G37 Sport 2010 Infiniti G37 X 2010 Nissan 370Z 40th Anniversary Edition 2010 Nissan 370Z Base 2010 Nissan 370Z Nismo 2010 Nissan 370Z Touring 2011 Infiniti G37 IPL 2011 Infiniti G37 Journey 2011 Infiniti G37 Sport 2011 Infiniti G37 X 2011 Nissan 370Z Base 2011 Nissan 370Z Nismo 2011 Nissan 370Z Touring 2012 Infiniti G37 IPL 2012 Infiniti G37 Journey 2012 Infiniti G37 Sport 2012 Infiniti G37 X 2012 Nissan 370Z Base 2012 Nissan 370Z Nismo 2012 Nissan 370Z Touring 2013 Infiniti G37 IPL 2013 Infiniti G37 Journey 2013 Infiniti G37 Sport 2013 Infiniti G37 X 2013 Nissan 370Z Base 2013 Nissan 370Z Nismo 2013 Nissan 370Z Touring 2014 Infiniti Q60 Base 2014 Infiniti Q60 IPL 2014 Infiniti Q60 Journey 2014 Infiniti Q60 S 2014 Nissan 370Z Base 2014 Nissan 370Z Nismo 2014 Nissan 370Z Touring 2015 Infiniti Q60 Base 2015 Infiniti Q60 IPL 2015 Infiniti Q60 Journey 2015 Infiniti Q60 S 2015 Infiniti Q60 S Limited 2015 Nissan 370Z Base 2015 Nissan 370Z Nismo 2015 Nissan 370Z Nismo Tech 2015 Nissan 370Z Sport 2015 Nissan 370Z Sport Tech 2015 Nissan 370Z Touring 2015 Nissan 370Z Touring Sport 2016 Nissan 370Z Base 2016 Nissan 370Z Nismo 2016 Nissan 370Z Nismo Tech 2016 Nissan 370Z Sport 2016 Nissan 370Z Sport Tech 2016 Nissan 370Z Touring 2016 Nissan 370Z Touring Sport 2017 Nissan 370Z Base 2017 Nissan 370Z Nismo 2017 Nissan 370Z Nismo Tech 2017 Nissan 370Z Sport 2017 Nissan 370Z Sport Tech 2017 Nissan 370Z Touring 2017 Nissan 370Z Touring Sport 2018 Nissan 370Z Base 2018 Nissan 370Z Nismo Tech 2018 Nissan 370Z Sport 2018 Nissan 370Z Sport Tech 2018 Nissan 370Z Touring 2018 Nissan 370Z Touring Sport 2019 Nissan 370Z Base 2019 Nissan 370Z Nismo 2019 Nissan 370Z Sport 2019 Nissan 370Z Sport Touring 2019 Nissan 370Z Touring 2020 Nissan 370Z Nismo 2020 Nissan 370Z Sport 2020 Nissan 370Z Sport Touring