Is definitely the twin-turbo Edition from the 13B engine intended to energy the 3rd-generation RX-7 released in late 1991. Every rotor on 13B-REW has a single combustion chamber quantity of 654cc. With two rotors, the entire displacement was 1308cc. Fantastic in good shape for a Mazda swap or substitute venture. https://13b-turbo-2-engine-for-sa05059.suomiblog.com/rx7-motor-things-to-know-before-you-buy-54575107