Denso 5720 IRE01-31 Iridium Racing Spark Plug for Mazda RX-7 (1978–2002)

Includes: - Denso 5720 IRE01-31 Iridium Racing Spark Plug

Fits Models: - Mazda RX-7

Model Years: - 1978–2002

Submodels: - Common trims include Base, Turbo II, and RX-7 Spirit R - Chassis codes: FC3S, FD3S - Body style: Coupe

Engine Options: - Common engine sizes: 1.1L (13B), 1.3L (13B-REW) - Engine codes: 13B, 13B-REW

Description: The Denso 5720 IRE01-31 Iridium Racing Spark Plug is designed for high-performance applications in the Mazda RX-7, enhancing ignition efficiency and engine performance. This spark plug features an iridium center electrode for improved durability and a longer lifespan compared to standard plugs.

Features: - High-performance iridium construction - Enhanced ignition efficiency - Longer lifespan than conventional spark plugs - Designed specifically for Mazda RX-7 models - Ideal for racing and performance applications