Is the dual-turbo version from the 13B engine made to power the 3rd-technology RX-seven introduced in late 1991. Every rotor on 13B-REW has an individual combustion chamber volume of 654cc. With two rotors, the entire displacement was 1308cc. Perfect in good shape for your Mazda swap or substitute project. Congratulations! https://jdmmazdarx-7fd13b-rewengi91763.blog-kids.com/34069103/new-step-by-step-map-for-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale