Is the twin-turbo version of the 13B engine designed to energy the third-generation RX-seven launched in late 1991. Every single rotor on 13B-REW has an individual combustion chamber volume of 654cc. With two rotors, the total displacement was 1308cc. Great fit for just a Mazda swap or replacement project. JDMBUYSELL https://riverexmbq.activablog.com/33077059/the-smart-trick-of-jdm-mazda-rx-7-fd-13b-rew-engine-for-sale-that-no-one-is-discussing