Could be the twin-turbo version with the 13B engine built to energy the 3rd-technology RX-seven launched in late 1991. Every single rotor on 13B-REW has a single combustion chamber volume of 654cc. With two rotors, the full displacement was 1308cc. Excellent in good shape to get a Mazda swap or https://custom-rx702345.blogspothub.com/37784835/details-fiction-and-mazda-13b-rew-motor-for-sale