Hands down the best radiator you will come across for your Mustang. Not all aluminum radiators are the same. These radiators have been used by J.R. Granatelli on all his road raced, street driven, and drag raced Mustangs for years and he's never had a problem overheating. 3inch thick, large 1.25inch cores, 28inch wide and double rowed. Virgin aluminum extruded cores.�Hand made and welded tanks ensure a perfect fit every time. Each unit is pressure checked to 30 psi. Each system includes premium hardware and detailed installation instructions.