Performance Aluminum Radiator (MMRAD-K20-EG) by Mishimoto. Overall Size: 15.04in x 16.73in x 4.02in. Core Size: 14.88in x 11.61in. Rows: 2. Inlet: 1.25in. Outlet: 1.25in. Tank Wall Thickness: 0.08in. Core Thickness: 1.57in. Drain Plug Thread Size: 1/8in NPT. Upper Tank Thread Size: 1/8in NPT. Lower Tank Thread Size: M18 x 1.5. Includes: Radiator, Radiator Cap, Magnetic Drain Plug with Dowty Oil Seal, Mishimoto Lifetime Warranty. 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.