Is the twin-turbo Variation with the 13B engine built to ability the 3rd-era RX-7 introduced in late 1991. Every rotor on 13B-REW has just one combustion chamber volume of 654cc. With two rotors, the entire displacement was 1308cc. Fantastic in good shape for just a Mazda swap or alternative challenge. https://mazda-rotary-engine-sale82481.blogdomago.com/29076682/5-simple-statements-about-13b-turbo-engine-for-sale-explained