NGK Iridium IX Spark Plug (BKR7EIX) Box of 4 — Universal Fit

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Car Wheel Size Chart

Wheel Diameter (inches) Tire Width (mm) Aspect Ratio Rim Width (inches)
14185655.5
15195606.0
16205556.5
17215507.0
18225457.5
19235408.0
20245358.5

Note: Wheel and tire sizes vary by car make and model. Always consult your vehicle’s manufacturer for exact specifications.

How to Read Tire Size

Example: 225/45R17 means:

  • 225 = Tire width in mm
  • 45 = Aspect ratio (height as % of width)
  • R17 = Rim diameter in inches

Product Details

Product Description
Part Numbers
Sizing & Fit

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Iridium IX Spark Plugs - BKR7EIX (Box of 4)

Unleash the full potential of your engine with the NGK Iridium IX Spark Plugs. This box contains four high-performance spark plugs (part number BKR7EIX), engineered for enthusiasts seeking superior acceleration, improved fuel efficiency, and exceptional durability. NGK's Iridium IX plugs are renowned for their extreme ignitability and anti-fouling properties, ensuring reliable performance under demanding conditions.

Experience the NGK Iridium Advantage:

  • Extreme Ignitability: The ultra-fine 0.6mm iridium center electrode provides a powerful spark for quicker starts, smoother idling, and enhanced throttle response.
  • Superior Durability: Iridium is one of the hardest and densest metals, offering up to twice the lifespan of standard platinum plugs.
  • Enhanced Fuel Efficiency: A more efficient burn translates to better gas mileage, saving you money at the pump.
  • Anti-Fouling Design: The tapered-cut ground electrode helps prevent fuel wetting and carbon buildup, ensuring consistent performance.
  • High Performance: Ideal for modified engines, racing applications, or any vehicle where maximum ignition performance is desired.

The iridium alloy's extremely high melting point makes these plugs perfect for today's high-performance engines. Whether you're upgrading your daily driver or preparing for the track, NGK Iridium IX spark plugs deliver the reliability and performance you need. For even greater performance, consider NGK's Ruthenium HX plugs as an alternative.

Invest in your engine's ignition system. Get your NGK Iridium IX Spark Plugs (BKR7EIX) today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-1998 Aston Martin DB7 Base
1997-1998 Aston Martin DB7 Volante
1991 Audi 200 Quattro 20v
1991 Audi 200 Quattro 20v Avant
2006-2013 Audi A3 Base
2009-2013 Audi A3 Quattro Base
2005-2014 Audi A4 Base
2007-2009 Audi A4 Cabriolet
2015 Audi A4 Prestige
2015-2016 Audi A4 Premium
2015-2016 Audi A4 Premium Plus
2005-2012 Audi A4 Quattro Avant
2005-2014 Audi A4 Quattro Base
2007-2009 Audi A4 Quattro Cabriolet
2015 Audi A4 Quattro Prestige
2015-2016 Audi A4 Quattro Premium Plus
2015-2016 Audi A4 Quattro Premium
2010-2014 Audi A5 Cabriolet
2010-2014 Audi A5 Quattro Base
2010-2014 Audi A5 Quattro Cabriolet
2015 Audi A5 Quattro Prestige
2015-2016 Audi A5 Quattro Premium
2015-2016 Audi A5 Quattro Premium Plus
2017 Audi A5 Quattro Sport
2012-2015 Audi A6 Premium
2012-2015 Audi A6 Premium Plus
2013-2015 Audi A6 Quattro Premium
2013-2015 Audi A6 Quattro Premium Plus
2015-2017 Audi Q3 Prestige
2015-2018 Audi Q3 Premium Plus
2017-2018 Audi Q3 Premium
2015-2017 Audi Q3 Quattro Prestige
2015-2018 Audi Q3 Quattro Premium Plus
2017-2018 Audi Q3 Quattro Premium
2011-2017 Audi Q5 Premium
2011-2017 Audi Q5 Premium Plus
2013-2016 Audi Q5 Hybrid Prestige
2011-2012 Audi R8 Spyder
2011-2012 Audi R8 Base
2012 Audi R8 GT
2012 Audi R8 GT Spyder
2014-2015 Audi R8 Plus
2014-2015 Audi R8 Spyder
2014-2015 Audi R8 Base
2017 Audi R8 Plus
2017 Audi R8 Spyder
2017 Audi R8 Base
2013-2015 Audi RS5 Base
2014-2015 Audi RS5 Cabriolet
2003 Audi RS6 Base
1992-1994 Audi S4 Base
1995 Audi S6 Avant
1995 Audi S6 Base
2008-2009 Audi TT Base
2009-2011 Audi TT Quattro Base
2012-2013 Audi TT Quattro Premium Plus
2012-2013 Audi TT Quattro Prestige
2014-2015 Audi TT Quattro Base
2009-2015 Audi TTS Quattro Base
2013-2015 Audi allroad Premium Plus

…and 158 additional fitments. Contact us to confirm yours.

Product Details

Product Description
Part Numbers
Sizing & Fit

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Iridium IX Spark Plugs - BKR7EIX (Box of 4)

Unleash the full potential of your engine with the NGK Iridium IX Spark Plugs. This box contains four high-performance spark plugs (part number BKR7EIX), engineered for enthusiasts seeking superior acceleration, improved fuel efficiency, and exceptional durability. NGK's Iridium IX plugs are renowned for their extreme ignitability and anti-fouling properties, ensuring reliable performance under demanding conditions.

Experience the NGK Iridium Advantage:

  • Extreme Ignitability: The ultra-fine 0.6mm iridium center electrode provides a powerful spark for quicker starts, smoother idling, and enhanced throttle response.
  • Superior Durability: Iridium is one of the hardest and densest metals, offering up to twice the lifespan of standard platinum plugs.
  • Enhanced Fuel Efficiency: A more efficient burn translates to better gas mileage, saving you money at the pump.
  • Anti-Fouling Design: The tapered-cut ground electrode helps prevent fuel wetting and carbon buildup, ensuring consistent performance.
  • High Performance: Ideal for modified engines, racing applications, or any vehicle where maximum ignition performance is desired.

The iridium alloy's extremely high melting point makes these plugs perfect for today's high-performance engines. Whether you're upgrading your daily driver or preparing for the track, NGK Iridium IX spark plugs deliver the reliability and performance you need. For even greater performance, consider NGK's Ruthenium HX plugs as an alternative.

Invest in your engine's ignition system. Get your NGK Iridium IX Spark Plugs (BKR7EIX) today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-1998 Aston Martin DB7 Base
1997-1998 Aston Martin DB7 Volante
1991 Audi 200 Quattro 20v
1991 Audi 200 Quattro 20v Avant
2006-2013 Audi A3 Base
2009-2013 Audi A3 Quattro Base
2005-2014 Audi A4 Base
2007-2009 Audi A4 Cabriolet
2015 Audi A4 Prestige
2015-2016 Audi A4 Premium
2015-2016 Audi A4 Premium Plus
2005-2012 Audi A4 Quattro Avant
2005-2014 Audi A4 Quattro Base
2007-2009 Audi A4 Quattro Cabriolet
2015 Audi A4 Quattro Prestige
2015-2016 Audi A4 Quattro Premium Plus
2015-2016 Audi A4 Quattro Premium
2010-2014 Audi A5 Cabriolet
2010-2014 Audi A5 Quattro Base
2010-2014 Audi A5 Quattro Cabriolet
2015 Audi A5 Quattro Prestige
2015-2016 Audi A5 Quattro Premium
2015-2016 Audi A5 Quattro Premium Plus
2017 Audi A5 Quattro Sport
2012-2015 Audi A6 Premium
2012-2015 Audi A6 Premium Plus
2013-2015 Audi A6 Quattro Premium
2013-2015 Audi A6 Quattro Premium Plus
2015-2017 Audi Q3 Prestige
2015-2018 Audi Q3 Premium Plus
2017-2018 Audi Q3 Premium
2015-2017 Audi Q3 Quattro Prestige
2015-2018 Audi Q3 Quattro Premium Plus
2017-2018 Audi Q3 Quattro Premium
2011-2017 Audi Q5 Premium
2011-2017 Audi Q5 Premium Plus
2013-2016 Audi Q5 Hybrid Prestige
2011-2012 Audi R8 Spyder
2011-2012 Audi R8 Base
2012 Audi R8 GT
2012 Audi R8 GT Spyder
2014-2015 Audi R8 Plus
2014-2015 Audi R8 Spyder
2014-2015 Audi R8 Base
2017 Audi R8 Plus
2017 Audi R8 Spyder
2017 Audi R8 Base
2013-2015 Audi RS5 Base
2014-2015 Audi RS5 Cabriolet
2003 Audi RS6 Base
1992-1994 Audi S4 Base
1995 Audi S6 Avant
1995 Audi S6 Base
2008-2009 Audi TT Base
2009-2011 Audi TT Quattro Base
2012-2013 Audi TT Quattro Premium Plus
2012-2013 Audi TT Quattro Prestige
2014-2015 Audi TT Quattro Base
2009-2015 Audi TTS Quattro Base
2013-2015 Audi allroad Premium Plus

…and 158 additional fitments. Contact us to confirm yours.

Product Details

Product Description

About NGK

NGK engineers high-quality automotive parts and accessories trusted by enthusiasts and shops across North America. At GGCRACING we stock the full NGK lineup with fast shipping and expert fitment support — order with confidence.

Watch in action

NGK Iridium IX Spark Plugs - BKR7EIX (Box of 4)

Unleash the full potential of your engine with the NGK Iridium IX Spark Plugs. This box contains four high-performance spark plugs (part number BKR7EIX), engineered for enthusiasts seeking superior acceleration, improved fuel efficiency, and exceptional durability. NGK's Iridium IX plugs are renowned for their extreme ignitability and anti-fouling properties, ensuring reliable performance under demanding conditions.

Experience the NGK Iridium Advantage:

  • Extreme Ignitability: The ultra-fine 0.6mm iridium center electrode provides a powerful spark for quicker starts, smoother idling, and enhanced throttle response.
  • Superior Durability: Iridium is one of the hardest and densest metals, offering up to twice the lifespan of standard platinum plugs.
  • Enhanced Fuel Efficiency: A more efficient burn translates to better gas mileage, saving you money at the pump.
  • Anti-Fouling Design: The tapered-cut ground electrode helps prevent fuel wetting and carbon buildup, ensuring consistent performance.
  • High Performance: Ideal for modified engines, racing applications, or any vehicle where maximum ignition performance is desired.

The iridium alloy's extremely high melting point makes these plugs perfect for today's high-performance engines. Whether you're upgrading your daily driver or preparing for the track, NGK Iridium IX spark plugs deliver the reliability and performance you need. For even greater performance, consider NGK's Ruthenium HX plugs as an alternative.

Invest in your engine's ignition system. Get your NGK Iridium IX Spark Plugs (BKR7EIX) today at GGCRACING.

Vehicle Fitment

Years Make Model Trim
1997-1998 Aston Martin DB7 Base
1997-1998 Aston Martin DB7 Volante
1991 Audi 200 Quattro 20v
1991 Audi 200 Quattro 20v Avant
2006-2013 Audi A3 Base
2009-2013 Audi A3 Quattro Base
2005-2014 Audi A4 Base
2007-2009 Audi A4 Cabriolet
2015 Audi A4 Prestige
2015-2016 Audi A4 Premium
2015-2016 Audi A4 Premium Plus
2005-2012 Audi A4 Quattro Avant
2005-2014 Audi A4 Quattro Base
2007-2009 Audi A4 Quattro Cabriolet
2015 Audi A4 Quattro Prestige
2015-2016 Audi A4 Quattro Premium Plus
2015-2016 Audi A4 Quattro Premium
2010-2014 Audi A5 Cabriolet
2010-2014 Audi A5 Quattro Base
2010-2014 Audi A5 Quattro Cabriolet
2015 Audi A5 Quattro Prestige
2015-2016 Audi A5 Quattro Premium
2015-2016 Audi A5 Quattro Premium Plus
2017 Audi A5 Quattro Sport
2012-2015 Audi A6 Premium
2012-2015 Audi A6 Premium Plus
2013-2015 Audi A6 Quattro Premium
2013-2015 Audi A6 Quattro Premium Plus
2015-2017 Audi Q3 Prestige
2015-2018 Audi Q3 Premium Plus
2017-2018 Audi Q3 Premium
2015-2017 Audi Q3 Quattro Prestige
2015-2018 Audi Q3 Quattro Premium Plus
2017-2018 Audi Q3 Quattro Premium
2011-2017 Audi Q5 Premium
2011-2017 Audi Q5 Premium Plus
2013-2016 Audi Q5 Hybrid Prestige
2011-2012 Audi R8 Spyder
2011-2012 Audi R8 Base
2012 Audi R8 GT
2012 Audi R8 GT Spyder
2014-2015 Audi R8 Plus
2014-2015 Audi R8 Spyder
2014-2015 Audi R8 Base
2017 Audi R8 Plus
2017 Audi R8 Spyder
2017 Audi R8 Base
2013-2015 Audi RS5 Base
2014-2015 Audi RS5 Cabriolet
2003 Audi RS6 Base
1992-1994 Audi S4 Base
1995 Audi S6 Avant
1995 Audi S6 Base
2008-2009 Audi TT Base
2009-2011 Audi TT Quattro Base
2012-2013 Audi TT Quattro Premium Plus
2012-2013 Audi TT Quattro Prestige
2014-2015 Audi TT Quattro Base
2009-2015 Audi TTS Quattro Base
2013-2015 Audi allroad Premium Plus

…and 158 additional fitments. Contact us to confirm yours.

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