NGK Racing Spark Plug R6725-105 - Box of 4

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SKU: NGK3857
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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.

NGK Racing Spark Plugs: Engineered for Extreme Performance

Unleash the full potential of your engine with NGK Racing Spark Plugs. Specifically designed for the demands of motorsport, these plugs are built to withstand the most grueling racing conditions, ensuring reliable ignition and maximum power output. The R6725-105, sold in a convenient box of 4, is a top choice for racers seeking uncompromising performance.

Why Choose NGK Racing Spark Plugs?

  • Extreme Durability: Constructed with special center electrode configurations and materials to endure high temperatures and pressures found in racing engines.
  • Enhanced Ignitability: Designed for superior spark energy, ensuring complete combustion even under extreme load.
  • Wide Heat Range: Available in a variety of heat ranges to precisely match the specific needs of different racing applications and engine tunes.
  • Proven Performance: Trusted by champions worldwide, NGK racing plugs are a staple in virtually every form of motorsport.
  • Optimized Design: Special configurations ensure optimal performance across a wide spectrum of racing disciplines.

The center electrode of NGK Racing spark plugs features unique designs and materials that guarantee both exceptional durability and consistent ignitability. This attention to detail translates directly into more power, better throttle response, and the reliability needed to finish the race. Whether you're on the track, drag strip, or rally course, NGK provides the ignition performance you can count on.

Don't let your ignition system hold you back. Equip your vehicle with the best. Get your NGK Racing Spark Plugs today at GGCRACING.

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.

NGK Racing Spark Plugs: Engineered for Extreme Performance

Unleash the full potential of your engine with NGK Racing Spark Plugs. Specifically designed for the demands of motorsport, these plugs are built to withstand the most grueling racing conditions, ensuring reliable ignition and maximum power output. The R6725-105, sold in a convenient box of 4, is a top choice for racers seeking uncompromising performance.

Why Choose NGK Racing Spark Plugs?

  • Extreme Durability: Constructed with special center electrode configurations and materials to endure high temperatures and pressures found in racing engines.
  • Enhanced Ignitability: Designed for superior spark energy, ensuring complete combustion even under extreme load.
  • Wide Heat Range: Available in a variety of heat ranges to precisely match the specific needs of different racing applications and engine tunes.
  • Proven Performance: Trusted by champions worldwide, NGK racing plugs are a staple in virtually every form of motorsport.
  • Optimized Design: Special configurations ensure optimal performance across a wide spectrum of racing disciplines.

The center electrode of NGK Racing spark plugs features unique designs and materials that guarantee both exceptional durability and consistent ignitability. This attention to detail translates directly into more power, better throttle response, and the reliability needed to finish the race. Whether you're on the track, drag strip, or rally course, NGK provides the ignition performance you can count on.

Don't let your ignition system hold you back. Equip your vehicle with the best. Get your NGK Racing Spark Plugs today at GGCRACING.

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.

NGK Racing Spark Plugs: Engineered for Extreme Performance

Unleash the full potential of your engine with NGK Racing Spark Plugs. Specifically designed for the demands of motorsport, these plugs are built to withstand the most grueling racing conditions, ensuring reliable ignition and maximum power output. The R6725-105, sold in a convenient box of 4, is a top choice for racers seeking uncompromising performance.

Why Choose NGK Racing Spark Plugs?

  • Extreme Durability: Constructed with special center electrode configurations and materials to endure high temperatures and pressures found in racing engines.
  • Enhanced Ignitability: Designed for superior spark energy, ensuring complete combustion even under extreme load.
  • Wide Heat Range: Available in a variety of heat ranges to precisely match the specific needs of different racing applications and engine tunes.
  • Proven Performance: Trusted by champions worldwide, NGK racing plugs are a staple in virtually every form of motorsport.
  • Optimized Design: Special configurations ensure optimal performance across a wide spectrum of racing disciplines.

The center electrode of NGK Racing spark plugs features unique designs and materials that guarantee both exceptional durability and consistent ignitability. This attention to detail translates directly into more power, better throttle response, and the reliability needed to finish the race. Whether you're on the track, drag strip, or rally course, NGK provides the ignition performance you can count on.

Don't let your ignition system hold you back. Equip your vehicle with the best. Get your NGK Racing Spark Plugs today at GGCRACING.

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