20B 3 Rotor RX7 10K RPM SOUNDGASM! – Best Sounding Engine Ever? Acceleration & Sound by turboandstance - July 30, 2019August 2, 2019 Jack Cecil and his beautiful 20B 3 Rotor Mazda RX7 are back! On this episode we dive into some modifications jack made to the RX7 and it sounds AWESOME! Stay tuned for more RX7 videos, enjoy and leave a comment below or share this one with your friends. Follow us also on Facebook! Leave a comment