For Acura RSX Full Aluminum 2-Row Racing Radiator (Manual Transmission) DC5 Constructed of High Quality T-6061 Aluminum Construction. High Performance JDM Spec. 2-Row Racing Design Light Weight Direct Bolt-On OEM Fitment or Replacement. Stronger & Higher Capacity for Coolant than Stock Units Highly Increase Cooling Performance Overall Size: 28.50 x 16.00 x 2.00 Inch. Core Size: 27.50 x 13.75 x 1.50 Inch Inlet/Outlet Diameter: 1.25"/ 1.25"