Free Shipping On Orders Over $49. Details

Talk to a Mustang Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $5,000 For Your Mustang! Enter daily!

PlasmaCore Spark Plugs (13-17 GT)

Market Price $135.59 You Save 12% ($15.60)
Our Price

$119.99 (set of 8)

FREE Shipping

  • Item 390306

Will this fit your Vehicle?

In Stock Ships same business day.
Ship to: ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    Features & Details

    • Improves Throttle Response, Horse Power and Torque
    • Increases Fuel Economy and Lower Emissions
    • Plasma-assisted Combustion Technology
    • Patented Internal Capacitor
    • Nickel-Chromium Center and Ground Electrodes
    • 14mm Thread Pattern
    • Heat Range: 1
    • Pulstar Part# EF1H10
    • Sold as a Set of 8
    • Fits 2013-2017 GT Mustangs
    High Performance. If you are a spirited driver why just replace your old spark plugs? When you can upgrade them with a set of high performance Pulstar PlasmaCore Spark Plugs. Pulstar Spark Plugs with plasma-assisted combustion technology produce a powerful 5 megawatt spark for a complete fuel burn. Due to this complete fuel burn, PlasmaCore Spark Plugs will increase the power, performance and fuel efficiency of your 5.0-liter Coyote Powered GT Mustang.

    Plasma-assisted Combustion. Pulstar PlasmaCore Spark Plugs feature a patented internal capacitor design that was developed with the help of a US Department of Energy laboratory. The internal capacitor allows the spark plug to store and compress more energy prior to its release, when compared to standard spark plugs. This stored energy is released within nanoseconds delivering a 5 megawatt pulse of peak power. This 5mw pulse discharge of energy ionizes a portion of the gaseous air-fuel mixture turning it to plasma which in turn instantly ignites the remaining air-fuel mixture in a cascading effect.

    Nickel-Chromium Alloy Electrode. Most performance spark plugs feature a fine wire electrode made from a precious metal, like platinum or iridium, in order to increase spark creation consistency. However, this consistent spark energy comes with the price of reduced life expectancy. Because of the plasma-forming pulse that ignites the air fuel mixture immediately, Pulstar Spark Plugs can take advantage of a larger center electrode made from an Austenite Nickel-Chromium Alloy (Inconel) that will extend spark plug life.

    Application. This set of eight (8) Pulstar PlasmaCore Spark Plugs are specifically designed as a direct fit replacement for the 2013-2017 GT Mustangs equipped with the 4 valve 5.0L Coyote engine.

    Fitment: 2013 2014 2015 2016 2017 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (8) Spark Plugs
    Installation Info
    Tech Specs
    • Thread Size: 14mm
    • Seat Type: Tapered
    • Reach: 25mm (1.0")
    • Hex Size: 5/8" (16mm)
    • Terminal Type: Solid
    • Gap: 0.039" (1.0mm)
    • Heat Range: 1
    • Center Electrode Material: Austenite Nickel-Chromium Alloy (Inconel)
    • Center Electrode Size: 2.3mm
    • Ground Electrode Material: Austenite Nickel-Chromium Alloy (Inconel)
    Will it fit my Mustang?

    You Might Also Like

    Customer Photos

    More Products You Might Like

    Q & A

    No questions about this product yet.

    Ask the First Question

    Recommended For You

    Customer Reviews (3) Write a Review

    Overall Rating 4

    out of 5 stars

    Installation Time:Less than 1 Hour

    • Performance Gain 5 5
    • Fit 5 5

    • 5/5

      April 25, 2017

      greatly satisfied with this product. thanks.



      Year: 2014 Submodel: GT

      Helpful (7)

    • 2/5

      August 08, 2016

      Throttle Response Was Garbage but AM Helped Fix It

      So I got these spark plugs hoping to get better gas mileage and better throttle response/power. WRONG. Essentially my Mustang would bog down, and would burn through gas like crazy. 10 MPG. I could barely break traction in first. I ended up pulling all of them, rechecking the gap. All .44. Ran it again. Same problem. No check engine codes, OBD II was clean. My car is a Stock tune with a KandN Air Intake. Nothing else. Put the stock Iridium Motorcraft plugs back in. Runs like a champ. I would recommend staying away from these until Pulstar figures their stuff out for high performance vehicles. AM as usual came in with great customer service and helped me return these defective plugs. Sticking with iridium from now on.


      Year: 2014 Submodel: GT

      Helpful (11)

    • 5/5

      Installation Time: Less than 1 Hour

      May 25, 2016

      I felt a difference

      My wife got me these spark plugs and it was a great choice! I felt the difference instantly on the road. The ride felt smoother and the throttle response was much more quicker as I stepped on the throttle. You can feel a slight horse power gain as to acceleration but not as much huge difference but it does help with cooperating with a tune for maximum performance. Simple installation as to a maintenance tune up and did not take a lot of time to do. Most of all my wife got it for a cheaper price here on AM than the other leader auto stores. AM beats the prices with it comes to these performance spark plugs than stock ones


      Year: 2016 Submodel: GT

      Helpful (9)

    Related Mustang Categories