Autolite(R) Racing plugs are designed for performance and with a passion for racing. Autolite(R) Racing spark plugs power several professional drivers to victory. Spark Plug. Established in 1959! This part generally fits Lotus,Mazda,Porsche vehicles and includes models such as 911,Cosmo,Elite,R100,Rotary Pickup,RX-2,RX-3,RX- 4,RX-7,Super Seven with the trims of Base Coupe 2-Door,Base Hardtop 2-Door,Base Sedan 4-Door,Base Standard Cab Pickup 2-Door,Base Wagon 4-Door,Base,E Coupe 2-Door,E,GS Coupe 2-Door,L,S Coupe 2-Door,S,SP Coupe 2-Door,T Coupe 2-Door,T.