Would be the twin-turbo Model on the 13B engine built to ability the 3rd-generation RX-7 released in late 1991. Each individual rotor on 13B-REW has only one combustion chamber volume of 654cc. With two rotors, the entire displacement was 1308cc. Ideal fit for a Mazda swap or substitution job. About https://augustrhrzk.actoblog.com/30368899/a-secret-weapon-for-custom-rx7