Quality Mishimoto Aluminum Radiator Make sure to pick (S13 89-94 or S14 95-98) with a SR20 Swap Manual Has your fan mounts welded for fan installation. 1.1 bar Mishimoto cap (16psi) Dual Core design for best cooling efficiency All Aluminum Construction 10.5 lbs dry Inlet/Outlet---35mm ID with a 38mm OD Inlet and outlet have the ripple for clamp stop.