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BOSCH WR9LS Silver Spark Plug - Single

Product ID: B000CF1YTE Condition: New

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Product Description

BOSCH WR9LS Silver Spark Plug - Single

Specifically engineered for older European performance cars, as well as some motorcycle applications.
Silver alloy center electrode tip ensures long service life and improved spark plug efficiency.
Highly resistant to material erosion at the high combustion chamber temperatures typical of older European vehicles.
Ribbed insulator design prevents misfires due to flash-over.
Nickel-plated rolled threads provide superior resistance to corrosion and do not require anti-seize for installation.
Compatible with select vehicles (Note: engine affects fitment - verify specific fitment details with amazon confirmed fit fit checker above): BMW: 1986-88 325,1984-87 325e,1986-87 325es,1982-87 528e,1983-84 533i,1985-88 535i,1988 535is.
Compatible with (continued): BMW: 1980-84 633CSi,1985-89 635CSi,1980-84 733i,1985-86 735i,1987 L6,1986 L7.

Bosch Silver spark plugs are specifically engineered to improve your performance, whether sport-driving and racing conditions or power sport application. These fine wire performance plugs are specifically engineered for colder racing applications, particularly those that run at full throttle (racing, water ski, and towing) and not for traditional automotive use (stop and go traffic) as they would quickly foul out. At the heart of these plugs is the silver enhanced center electrode that conducts electricity better than copper or nickel. These plugs are specifically engineered for high performance, not long life. As silver has a lower melting point than nickel, these plugs will need to be replaced more often depending on your application. For many racing applications this is not an issue as many racers are already replacing plugs after each race or even every run.