Racing Radiator

The KoyoRad VH021568 is an all-aluminum Hyper V-Core Series racing radiator, engineered as a direct, bolt-in replacement for the 2003-2006 Nissan 350Z (Z33) with the VQ35DE engine and manual transmission. This radiator features a thicker core and a more efficient fin design that KoyoRad states helps with coolant flow and temperature drop. The Hyper V-core was specifically developed for vehicles that experience extreme heat, have limited space, or where factory inlet/outlet locations prevent an ideal N-FLO design, offering a space-saving, high-performance solution. Unless otherwise noted, these radiators are Nocolok brazed and retain mounts for stock fan shrouds and fans, requiring no engine modifications for installation. It is important to note that this radiator is designed for VQ35DE engines only and is exclusively for manual transmission models. The new crossflow design may require slight trimming of the fan shroud near the coolant outlet pipe. Buyers are strongly encouraged to confirm fitment with their specific vehicle details before purchasing to avoid potential issues.