ACCEL Spark Plug - 14 mm Thread - 0.750 in R - Gasket Seat - Resistor - Set of 4 355013 Helmet Kit: HK-OFSP OR HK-OFSP3

Helmet Kit: HK-OFSP OR HK-OFSP3

Sprung Full face/Segmented face Organic/Carbon Composite DiscVehicle Applications: 1993 thru 1997 Chevrolet Camaro Z28 5

2005-2007 Lexus GX470

Forged Steel Crank

ACCEL Spark Plug - 14 mm Thread - 0.750 in R - Gasket Seat - Resistor - Set of 4 355013 Helmet Kit: HK-OFSP OR HK-OFSP3ACCEL U Groove Spark plugs have set the standard for High Performance Spark Plugs. ACCEL Engineers developed and patented the U Groove technology which permitted the spark to develop a much larger, hotter and fuller flash front. That effectively gave a more complete burn of the air fuel mixture in the combustion chamber. Over the past 25 years engine head design and fuel management technology has changed. As a result, ACCEL is moving away from the U