Is definitely the twin-turbo version from the 13B engine made to power the 3rd-generation RX-seven introduced in late 1991. Each and every rotor on 13B-REW has a single combustion chamber quantity of 654cc. With two rotors, the whole displacement was 1308cc. Ideal fit for your Mazda swap or substitute venture. https://caidenunewu.blogpixi.com/30054265/mazda-13b-rew-motor-for-sale-an-overview