Ignition

NGK

NGK BUR7EQP + BUR9EQP Platinum Spark Plug Mazda RX-7 FC3S FD3S Leading + Trailing Set

These are the lower / leading spark plugs for the Mazda RX-7 Rotary Engine 13B.Safe for Stock port / Street ported motors.We recommend using the NGK BUR9EQP for trailing for basic bolt-ons. NGK Laser Platinum® spark plugs provide high ignitability...

NGK

NGK BUR9EQP Platinum Spark Plug RX-7 FC3S FD3S Upper Trailing (4-Plugs)

These are the Upper / Trailing spark plugs on the 13B Rotary engines.Safe for Stock Port / Street Ported motors.Some people prefer using BUR9EQP for Leading and Trailing spark plugs. NGK Laser Platinum® spark plugs provide high ignitability and...

NGK

NGK BUR7EQ V-Power Spark Plug RX-7 FC3S FD3S Lower Leading 13B (4-Plugs)

These are the lower / leading spark plugs for the Mazda RX-7 Rotary Engine 13B.Safe for Stock port / Street ported motors. NGK V-Power spark plugs are commonly used in many high performance engines.  These are the only spark plugs with the V-Groove...

NGK

NGK BUR9EQ V-Power Spark Plug RX-7 FC3S FD3S Upper Trailing 13B (4-Plugs)

These are the Upper / Trailing spark plugs on the 13B Rotary engines.Safe for Stock Port / Street Ported motors.Some people prefer using BUR9EQ for Leading and Trailing spark plugs. NGK V-Power spark plugs are commonly used in many high performance...