X-Line Performance Aluminum Radiator (MMRAD-STI-08X) by Mishimoto. Includes: Radiator, Radiator Cap, Magnetic Drain Plug. Overall Size: 28in x 21.8in x 2.5in. Core Size: 13.39in x 27.09in. Rows: 3. Inlet: 1.54in. Outlet: 1.54in. Core Thickness: 2in. Tank Wall Thickness: 0.08in. Fill Neck: 1.22in. Fill Neck Thickness:.12in. Drain Plug Thread Size: (M16).06in. Drain Plug Thread Length:.047in. The Mishimoto performance Aluminum radiator is designed and engineered to maximize cooling efficiency, boost engine functions, and most importantly protect your car from overheating. It is the ideal upgrade to your stock radiator. Whether you drive your vehicle daily or take it to the track an upgraded cooling system is essential in maintaining the lifetime of your engine.