Will be the twin-turbo Model on the 13B engine made to ability the 3rd-generation RX-7 released in late 1991. Each individual rotor on 13B-REW has one combustion chamber volume of 654cc. With two rotors, the full displacement was 1308cc. Ideal in good shape for the Mazda swap or replacement task. https://13bturbo2engineforsale91245.blog-kids.com/39301102/details-fiction-and-rotary-engine-rx7