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NGK Iridium Premium Spark Plug Box of 4 (BR9EIX)

Take your vehicle's performance to the next level with the NGK Iridium Premium Spark Plug Box of 4 (BR9EIX). Specifically designed for the performance enthusiast, these spark plugs provide outstanding acceleration, high fuel efficiency, and durability.

With their tapered cut ground electrode, these spark plugs offer improved starting, idling, and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum, and the Iridium alloy's extremely high melting point is perfect for today's engines.

  • Recommended for modified or high-performance applications, or as an upgrade to OE nickel alloy spark plugs
  • Provides outstanding acceleration, high fuel efficiency, and durability
  • Extreme ignitability and exceptional anti-fouling

This product fits more vehicles than loaded. Please select your vehicle to see all fits.

Make Model Year Type
Cobra CX65 2007 Base
Cobra CX65 2007 Base
Cobra CX65 2007 Base
Cobra CX65 2007 Base
Cobra CX65 2007 Base
Cobra CX65 2007 Base
Cobra CX65 2007 Base
Cobra KING 1998 Base
Cobra KING 1999 Base
Honda ATC250R 1984 Base
Honda ATC250R 1985 Base
Honda ATC250R 1986 Base
Honda CR125R 1999 Base
Honda CR125R 2000 Base
Honda CR125R 2001 Base
Honda CR125R 2002 Base
Honda CR125R 2003 Base
Honda CR125R 2004 Base
Honda CR125R 2005 Base
Honda CR125R 2006 Base
Honda CR125R 2007 Base
Honda CR250M 1973 Base
Honda CR250M 1974 Base
Honda CR250M 1975 Base
Honda CR250M 1976 Base
Honda CR250R 1978 Base
Honda CR250R 1979 Base
Honda CR250R 1980 Base
Honda CR250R 1981 Base
Honda CR250R 1987 Base
Honda CR250R 1988 Base
Honda CR60R 1983 Base
Honda CR60R 1983 Base
Honda CR80R 1980 Base
Honda CR80R 1981 Base
Honda CR80R 1982 Base
Honda CR80R 1983 Base
Honda CR80R 1984 Base
Honda CR80R 1985 Base
Honda FL250 Odyssey 1982 Base
Honda FL250 Odyssey 1983 Base
Honda FL250 Odyssey 1984 Base
Honda NSR50 2004 Base
Honda TRX250R 1987 Base
Honda TRX250R 1988 Base
Suzuki GT250 1973 Base
Suzuki GT250 1973 Base
Suzuki LT250R QuadRacer 1985 Base
Suzuki LT250R QuadRacer 1986 Base
Suzuki LT250R QuadRacer 1987 Base
Suzuki LT250R QuadRacer 1988 Base
Suzuki LT250R QuadRacer 1989 Base
Suzuki LT250R QuadRacer 1990 Base
Suzuki LT250R QuadRacer 1991 Base
Suzuki LT250R QuadRacer 1992 Base
Suzuki PE175 1978 Base
Suzuki PE250 1980 Base
Suzuki PE400 1980 Base
Suzuki PE400 1980 Base
Suzuki RM100 1976 Base
Suzuki RM100 1977 Base
Suzuki RM100 1978 Base
Suzuki RM100 1979 Base
Suzuki RM100 1980 Base
Suzuki RM100 1981 Base
Suzuki RM125 1977 Base
Suzuki RM125 1978 Base
Suzuki RM125 1979 Base
Suzuki RM125 1980 Base
Suzuki RM125 1982 Base
Suzuki RM125 1983 Base
Suzuki RM125 1984 Base
Suzuki RM125 1985 Base
Suzuki RM125 1986 Base
Suzuki RM125 1987 Base
Suzuki RM125 1988 Base
Suzuki RM125 1989 Base
Suzuki RM125 1990 Base
Suzuki RM125 1991 Base
Suzuki RM125 1992 Base
Suzuki RM125 1993 Base
Suzuki RM125 1994 Base
Suzuki RM125 1995 Base
Suzuki RM250 1977 Base
Suzuki RM250 1978 Base
Suzuki RM250 1979 Base
Suzuki RM250 1980 Base
Suzuki RM250 1981 Base
Suzuki RM370 1976 Base
Suzuki RM370 1976 Base
Suzuki RM465 1981 Base
Suzuki RM60 2003 Base
Suzuki RM80 1982 Base
Suzuki RM80 1984 Base
Suzuki RM80 1985 Base
Suzuki RMX250 1993 Base
Suzuki RMX250 1994 Base
Suzuki RMX250 1995 Base
Suzuki RMX250 1996 Base
Suzuki RMX250 1997 Base
NGK manufactures spark plugs and spark plug wires, as well as glow plugs for diesel applications. Their range of spark plugs cover everything from OEM replacement to Ultimate Performance plugs, and are available as traditional copper, platinum, or iridium tips. NGK’s reputation as an OEM supplier for many car manufacturers makes them a top choice for spark plugs. Few brands can make that claim and have the quality to back it up.
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