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 longer service life. Dual platinum surfaces ensure slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.
*Sold in quantities of 4*
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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...
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NGK
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...
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NGK
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...
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NGK Laser Platinum Spark Plug (Leading) 86-95 Mazda RX-7 OE-style long-life spark plug; laser-welded platinum ground and center electrodes; requires less voltage; features increased...
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NGK BRR7E spark plugs for 1JZ / 2JZ.Sold as a set of 6.
