Is the twin-turbo Model in the 13B engine meant to electricity the 3rd-technology RX-seven released in late 1991. Every single rotor on 13B-REW has only one combustion chamber volume of 654cc. With two rotors, the whole displacement was 1308cc. Best in good shape to get a Mazda swap or substitution https://mazdarx-7engine14579.activosblog.com/29862536/the-best-side-of-13b-rew-motor-for-sale