Would be the twin-turbo Edition from the 13B engine made to energy the 3rd-era RX-7 introduced in late 1991. Every single rotor on 13B-REW has just one combustion chamber quantity of 654cc. With two rotors, the overall displacement was 1308cc. Best suit to get a Mazda swap or substitution job. https://trentonwkyjs.bluxeblog.com/61884048/examine-this-report-on-mazda-13b-rew-motor-for-sale