TOP RX7 MOTOR SECRETS

Early 12A engines also attribute a thermal reactor, similar to the 0866 10A, and several use an exhaust port insert to lower exhaust sound. A lean-burn Model was launched in 1979 (in Japan) and 1980 (in the united states) which substituted a more-conventional catalytic converter for this "afterburner". A major modification on the 12A architecture w