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Brisk Silver Racing Spark Plugs; Up to 450HP (Mid 08-10 GT)

Item 386533
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Market Price $149.99 You Save 9% ($14.07)
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$135.92 (set of 8)

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      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation


      • Brisk "Silver Racing" Series Spark Plugs
      • Silver Center Electrode for More Power
      • Recommended for up to 450 Flywheel Horsepower
      • Brisk Part# XOR14YS
      • 12mm Thread Pattern
      • Fits 2008-2010 GT and Bullitt Mustangs w/ Brown Coil Boots
      • Sold as a Set of 8


      High Powered Performance. Is your high powered GT Mustang experiencing misfires because of weak or fouled plugs? Then you need to upgrade to a set of Brisk Silver Racing Spark Plugs to keep your Pony running smoothly and more efficiently. Brisk designed these Silver Racing Series Spark Plugs especially for those Mustangs that are making up to 450 horsepower at the flywheel. These Brisk Plugs will provide constant reliable spark power and are perfectly suited for 3-valve 4.6L V8 engines that are running a forced induction setup, nitrous or methanol injection.

      Superior Design and Materials. Featuring a high dielectric strength insulator, Brisk Silver Racing Spark Plugs are manufactured with a 1.5mm fine wire silver center electrode for its excellent electrical and thermal conductivity to produce a more powerful spark. To minimize the chance fouling Brisk Spark Plugs feature a unique tapered ground strap design that allows for superior ignitability, even on hard to ignite fuels.

      Application. This set of eight (8) 12MM Thread Brisk Silver Racing Spark Plugs are specifically designed for the 2008-2010 GT and Bullitt Mustangs equipped with Brown coil boots only.

      Fitment: 2008 2009 2010 Details

      MPN# XOR14YS

      CA Residents: WARNING: Cancer and Reproductive Harm -


      Customer Reviews (3)

      Write a Review

      Ratings Summary

      4.3 out of 5 overall rating from 3 customers

      Installation Time: Afternoon

      • January 02, 2017

        5 2008 GT - MrMustang2016 Installation Time: Afternoon


        You can tell a difference as soon as you start the engine in my 2008 mustang gt. I recommend them if you are wanting that extra get up and go.

        Helpful (11)
      • December 29, 2016

        3 2006 GT - Rob Installation Time: Less than 1 Hour

        Had 1 go bad prematurely.

        I was pleased with them until my car started to missfore past 3000 rpms and backfiring. Started troubleshooting woth the obvious coil packs and plugs. Found cylinder #2 spark plug having the core tip moving loosely. Changed it out and car ran fine. Only had them on the car for less than a year and less than 6000 miles. I guess this things happen, but even the stock motorcrafts did not go bad this quick. I will be changing all of them out shortly to prevent this from happening sometimes soon.

        Helpful (11)
      • May 18, 2016

        5 2006 GT - Moe Installation Time: Afternoon


        Purchased these from brisk themselves before and they are amazing. Great spark plug to swap to

        Helpful (11)

      Questions & Answers (2 answers)

      2 Top Rated Questions

      Would these work on an NA car for a short period until Forced Induction?

      • We do not recommend using these for NA applications, regardless of how long they are being used.

      Helpful (0)

      Will these work with the MSD blaster coil packs?

      • This set of eight (8) 12MM Thread Brisk Silver Racing Spark Plugs are specifically designed for the 2008-2010 GT and Bullitt Mustangs equipped with Brown coil boots only. If this applies to you, then you are good to go!

      Helpful (0)
      Post Your Question

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (8) Spark Plugs

      Tech Specs

      Will It Fit My Mustang

      • Bullitt - 08, 09
      • GT - 08, 09, 10

      Designed for the 2008-2010 GT and Bullitt Mustangs equipped with Brown coil boots only.

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