CSF Racing 1-Row 31mm Ultra High Performance Aluminium RadiatorProtect your VQ35 HR engine under extreme driving conditions with a high performance all aluminum upgrade vs. the lesser, and now very old OEM style plastic aluminum radiator. Designed to perform on track, drifting, and drag racing. A must have for high horsepower VQs with built engines and or addition of a forced induction system (turbocharger or supercharger). CSF manufactures the most advanced and efficient radiator cores in the industry by using