Would be the twin-turbo Model of your 13B engine designed to ability the third-generation RX-7 introduced in late 1991. Just about every rotor on 13B-REW has a single combustion chamber quantity of 654cc. With two rotors, the full displacement was 1308cc. Ideal suit for any Mazda swap or alternative job. https://wendelli751ejl4.wikinstructions.com/user