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Increased performance with World's smallest Iridium Center Eletrode (0.4mm). Spark Plug Iridium Power

Bosch OE Fine Wire Double Iridium. All iridium plugs are NOT created equal. Give your customers the only one engineered for both high...

OEM specified special ground electrode configuration. Spark Plug Standard Standard Spark Plug

U-Groove design provides better ignitability for increased engine efficiency. Spark Plug Standard

No-compromise, top of the line race spark plug for the most serious enthusiast. Spark Plug Iridium Racing

Bosch OE Fine Wire Double Iridium. All iridium plugs are NOT created equal. Give your customers the only one engineered for both high...

U-Groove design provides better ignitability for increased engine efficiency. Spark Plug Standard

U-Groove design provides better ignitability for increased engine efficiency. Spark Plug Standard Standard Spark Plug

Bosch OE Fine Wire Double Iridium. All iridium plugs are NOT created equal. Give your customers the only one engineered for both high...

Manufactured to the strictest OE performance, durability and emissions standards. Spark Plug Iridium Long-Life

Manufactured to the strictest OE performance, durability and emissions standards. Spark Plug Iridium Long-Life

Increased performance with World's smallest Iridium Center Eletrode (0.4mm). Spark Plug Iridium Power