Brisk 5.7, 6.1 Hemi Race Plug - Non Projected/Silver Electrode/2 Step Colder/6.1 & 5.7/Gap at 32/Eagle Heads 2009 Up

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Gasket Seat Non-Projected Tip Silver Electrode Recommended Starting Gap at .032" Sold Individually Spark Matters: Using the correct spark plug is a must for nitrous powered vehicle s 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:NGK Equivalent heat range is 7. This spark plug fits the following: 2009 and up 5.7L Hemi with Eagle Heads and is 2 steps colder than stock. 2015+ Hellcat 6.2L Supercharged Engines and is 1 step colder than stock. Show more