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Brisk Silver Racing Spark Plugs - 450HP+ (Mid 08-10 GT)

Market Price $139.99 You Save 9% ($13.03)
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$126.96 (set of 8)

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  • Item 386532

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Ship to: Ashburn - 20149
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    Features & Details

    • Brisk "Silver Racing" Series Spark Plugs
    • Silver Center Electrode for More Power
    • Recommended for 450+ Flywheel Horsepower
    • Brisk Part# XOR12YS
    • 12mm Thread Pattern
    • Fits 2008-2010 GT and Bullitt Mustangs w/ Brown Coil Boots
    • Sold as a Set of 8
    High Powered Performance. Keep your Mustangs high powered 3-valve 4.6L V8 engine running smoothly and more efficiently with a brand new set of Brisk "Silver Racing" series spark plugs for a constant reliable spark power. These Brisk Silver Racing spark plugs are designed for use in Mustangs that are making 450 or more horsepower at the flywheel, perfect for Methanol injection, Forced induction and Nitrous applications.

    Superior Design and Materials. Brisk Silver Racing spark plugs feature a high dielectric strength insulator and use a 1.5mm fine wire silver center electrode for its excellent electrical and thermal conductivity which in turn produces a more powerful spark. The tapered ground strap design allows for superior ignitability on hard to ignite fuels minimizing the chance fouling.

    Application. This set of eight (8) 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# XOR12YS

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (8) Spark Plugs
    Installation Info
    Tech Specs
    Will it fit my Mustang?

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    Questions & Answers (1)

    1 Top Rated Question

    What should the gap be set to for a Roush supercharged 4.6L? I left it at factory setting but seems a little sluggish at 3000 rpm.

    • Depending on the modifications on your vehicle the gap will ultimately change. I would highly recommend speaking to your tuner and how the vehicle was tuned for the proper gap for the spark plugs.

    Helpful (0)
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    Customer Reviews (5) Write a Review

    Overall Rating 5

    out of 5 stars

    Installation Time:Afternoon

    Installation Cost:0-$100

    • Performance Gain 4.2 4.2
    • Fit 5 5

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      October 06, 2018

      Tune, cams,plugs

      Engine runs very smooth now and I am very pleased I made the decision to try these plugs.


      Year: 2010 Submodel: GT

      Helpful (5)

    • 5/5

      Installation Time: Less than 1 Hour

      November 12, 2017

      Best of the best for your 3v

      After chasing a persistent random misfire under cruise conditions with Ford Racing plugs, we opted for a set of these. While the cost does take a lil to get your head around they flat out work, well worth the cost.


      Year: 2008 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      June 22, 2017

      Great plugs

      Increased performance and mileage. Definitely felt the difference with these and the MSD coils. Put these on a 09 GT/CS with a 72mm Turbonetics turbo.


      Year: 2009 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      June 01, 2017

      Brisk spark plug and Coil on plug install

      It took me less than an hour to install the plugs and coils. I had no problems. The car runs smoother and I noticed an improvement in performance. The car seems more eager to go than it did before. Cool!


      Year: 2008 Submodel: Bullitt

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      December 17, 2015

      America muscle

      Order the brisk plugs for my 2010 roush in it really woke the car up great buy


      Year: 2010 Submodel: Other Baltimore

      Helpful (10)

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