For BMW New Six CS 5/6-Series Aluminum 2-Row Dual Core Racing Radiator - E9 E3 E12 E24 M30 MT Lightweight Direct Bolt-On OEM Fitment or Replacement High Performance JDM Spec. 2-Row Racing Design Overall Size: 26.5" x 19" x 1.5"; Core Size: 22.5" X 17.25" X 1.5"; Inlet/Outlet: 1.58" / 1.58" Improves Cooling by 35 - 45% Temp. Application: Please Check Part Finder on Top of The Page (Professional Installer is Highly Recommended No Instruction Included)