RX7 MOTOR OPTIONS

Early 12A engines also attribute a thermal reactor, much like the 0866 10A, and some use an exhaust port insert to cut back exhaust sounds. A lean-burn Edition was launched in 1979 (in Japan) and 1980 (in America) which substituted a more-common catalytic converter for this "afterburner". A serious modification of your 12A architecture was the 6PI