ISR Performance Thermostat 68 Degree 154.4F Nissan 350Z 370Z 07-20 G35 G37 07-13 V36 VQ35HR VQ37HR

ISR Performance Thermostat - Nissan VQ35HR & VQ37HR without water port - 68 Degree

ISR Performance colder thermostat for VQ35HR and VQ37HR Engines. Good upgrade for High performance engines, The ISR units opens at 68 deg celsius compared to factory 78 deg celsius. Cool down your motor before heat builds up!

Once the engine is fully warmed up the ISR thermostat will open up at a lower temperature than standard thermostats, also allowing the coolant to flow through the engine sooner thus reducing and maintaining cooler engine temperatures.

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Legal only for use in competition vehicles which may never be registered, licensed, and/or used on public streets or highways; and also for use in other exempted vehicles.