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BOSCH X5DC Copper with Nickel Spark Plug - Single
Heavy-duty yttrium enhanced nickel-copper center electrode ensures superior reliability and durability for up to 50% longer performance life vs. standard copper plugs
Copper core provides broader heat range to resist pre-ignition and deposit build-up
Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize - saving time
Angled, ribbed insulator design prevents misfire due to flash-over
Metal glass fused resistor maximizes interference suppression
Compatible with select vehicles (Note: engine affects fitment - verify specific fitment details with amazon confirmed fit fit checker above): BMW: 1988-91 M3, 1988 M5, 1987-88 M6
OE Copper core spark plug provides broader heat range to resist pre-ignition and fouling. The nickel-plated rolled threads is used for complete anti-seize and corrosion protection, and the angled, ribbed insulator design prevents misfire due to flash-over.