will be the twin-turbo Edition on the 13B engine meant to energy the 3rd-generation RX-7 released in late 1991. Every rotor on 13B-REW has just one combustion chamber volume of 654cc. With two rotors, the overall displacement was 1308cc. Perfect suit for your Mazda swap or substitute task.The original Mazda RX-8 was a big departure from the final t