ISR Performance Thermostat 68 Degree Nissan VQ35DE w/ Water Port vendor_Permaseal Digressive piston technology allows for

Digressive piston technology allows for stiff low-speed compression/rebound force

and motorsports applications

Part #: TS-GTR-501

Part: # MMRAD-GEN4-10

NOTE: Matte black is a new addition and is not textured

ISR Performance Thermostat 68 Degree Nissan VQ35DE w/ Water Port vendor_Permaseal Digressive piston technology allows forPart #: IS 21200 31U13 ISR Performance colder thermostat for VQ35DE 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