The Nissan Z is legendary as is C&R Performance race winning radiators. Built to keep the VQ35DE cool especially with forced induction. Made in Austraila using race proven 42mm core, this is the highest quality alumium radiator you can use. Most radiator manufactures use off the shelf cores that were designed in the early 80's. But not C&R , as with all applications, street or race, we take the time to design proper core for each application and coupled with using modern CNC manufacturing and skilled professional fabricators and welders gives the customer a real advantage. Being part of the PWR group, we make our own core. This gives us much better control and results. We also design it per application so we are not like any other radiator manufacture.