will be the twin-turbo Model from the 13B engine built to electrical power the 3rd-generation RX-7 released in late 1991. Each and every rotor on 13B-REW has one combustion chamber volume of 654cc. With two rotors, the whole displacement was 1308cc. Fantastic suit for just a Mazda swap or substitution project.JDM Engine Depot is a very pleased serv