Manufacturers
NGK B9EFS - Non Projected/Tapered Seat/Nickle/Copper Core/4 Steps Colder, 11-108  Product 4915 of 5115 in category Nitrous Systems Corvette  NGK R5671A-10 (4 Steps Colder), 11-5820

NGK BR7EF (2 Steps Colder), 11-3346

NGK BR7EF (2 Steps Colder), 11-3346
$3.99 
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  • 2 Steps Colder

  • Non-Projected Nickel Alloy Tip

  • Gapped At .032

  • Sold Individually

2 Steps Colder

This plug is has a heat range of 7 which is generally 2 steps colder than most applications. Check your vehicles recommended heat range to verify.

Spark Matters

Using the correct spark plug is a must for nitrous powered vehicles to ensure maximum performance and reliability. A good rule of thumb is to run one step colder plug per each 100HP added over stock. If you are unsure about what spark plug is right for your application contact a Nitrous Outlet tech specialist at 866-648-7637 and we will help you find the perfect plug for your application.

Application

This plug will fit most LSX applications and Ford 4.6L 2V and 4V motors. This plug should be gapped at .032".

This product was added to our catalog on Friday 23 January, 2026.
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NGK B9EFS - Non Projected/Tapered Seat/Nickle/Copper Core/4 Steps Colder, 11-108  Product 4915 of 5115 in category Nitrous Systems Corvette  NGK R5671A-10 (4 Steps Colder), 11-5820
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