For Rolls-royce Corniche/silver Spur 1990 1991 1992 1993 Spark Plug | Standard

Details:

PRODUCT OVERVIEW: - U-Groove spark plugs feature a u-shaped groove in the ground electrode, giving the flame a groove to grow in, resulting in less flame dissipation and a larger flame front for a more complete combustion. This translates to better fuel efficiency and improved throttle response. Machine rolled threads prevent seizing or cross threading during installation and removal. 100% pre-fired to assure the highest quality possible. Purified alumina powder insulator provides exceptional st...

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