Could be the twin-turbo Edition from the 13B engine meant to electricity the third-technology RX-7 launched in late 1991. Each individual rotor on 13B-REW has an individual combustion chamber quantity of 654cc. With two rotors, the whole displacement was 1308cc. Ideal in good shape for any Mazda swap or substitution https://rx7turbo2motorforsale79012.fare-blog.com/39246568/what-does-13b-turbo-for-sale-mean