DNA Motoring RA-E46-2 2-Row Full Aluminum Radiator Made of High Quality Full T-6061 Aluminum Construction Stronger & Higher Capacity for Coolant than Stock Units / Light Weight Direct Bolt-On OEM Fitment or Replacement High Performance 2-Row Racing Design / Improves Cooling by 35 - 45% Temp. Overall Dimension: 26.25 x 16.75 x 2.75 / Core Dimension: 22.75 x 15.5 x 2.25 / Inlet: 1.5" / Outlet: 1.5" Professional Installer is Highly Recommended No Instruction Included