Koyo V2577 Nissan 03-06 350Z MT (VQ35DE) Aluminum Radiator Designed for applications where engine configuration/size causeclearances issues for thicker core radiators. In this case, the36mm V-Core Series will suit your needs. Intended for both circuitand daily use.All Koyorad V-Series All Aluminum Radiators are Nocolok brazed,designed as a factory fit, direct bolt in with no enginemodifications necessary, and retain mounts for the stock fanshrouds and fans.