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NGK Laser Iridium Performance Spark Plugs (11-17 GT; 12-13 BOSS 302)

Item 64062
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$95.92 (set of 8)

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      Video Review & Installation

      Hey, everybody. Alex with Today, I'm bringing you my quick review and breakdown of NGK's Laser Iridium spark plugs, fitting your 2011 through 2017 GT and a '12 and '13 Boss 302. So NGK's Laser Iridium performance plugs we're taking a look at today is going to be a great option for any '11 through '17, or Boss 302 owner out there that's looking for a great replacement plug or an upgraded plug, which can range for a stock or a mild bolt-on build.However, I'll throw it out there that if you're running any type of forced induction at all, maybe a small shot of nitrous, I would suggest checking out NGK's 9 Series plugs, as they're going to be a step cooler. I'm going to explain the heat ranges a little bit more, coming up soon. So I will throw it out there that no matter the manufacturer of the spark plug that you're looking at, heat ranges are going to be all over the place. NGK's is a little bit backwards, for lack of a better term or explanation, because the higher the number will yield a cooler plug. But being said, NGK's Iridium plugs that we're taking a look at here today will be a step hotter than the plugs that I have previously mentioned. That nine heat range is going to be great for a forced induction or a car that's running some nitrous. However, these are going to be at a heat range of six, which is going to be perfect for a stock or a mild bolt-on car. Now, by getting into a set of fresh plugs or an upgraded set like we're looking at here today, you're essentially going to be making your Coyote work that much more efficiently. While it's advertised that spark plugs can help your fuel consumption, with a 400-plus horsepower car, it's really not something that you're going to notice just based on how you're driving, as well as the age of the car. Now, the great thing about doing plugs is that they're not going to install with that much effort. For that, we'll be giving them a very easy one out of three wrenches on the difficulty meter, and about an hour for the labor with basic hand tools. Now, in terms of what makes these what these are, or just a spark plug in general, we're going to see that it's going to feature an iridium disk, which is essentially going to be welded on the center electrode, and then a platinum disk which is then going to be welded on the ground electrode. Now, these are going to be one of your more pricier plugs out there, but that's going to be due to the fact that it will be coming with very premium materials. In turn, you should expect to get about 50,000 miles of use out of your plugs. Now, at the end of the day, in English here, guys, what that's going to translate to is going to be a much happier and healthier Coyote, one that's going to heat up a little bit faster. In some instances, you might even see an improved idle and one that's going to be geared towards a stock or a mild bolt-on Coyote. Now, with premium materials and that NGK name, this is not going to be something like you'd find at your local gas station right off the shelf. You should expect to be spending about $115 to get into this set. Now, in my humble opinion, that's a really small price to pay to ensure that your Mustang is going to be running at 100%. Again, I'll throw it out there one last time that when you're shopping for spark plugs, you really need to pay close attention to the manufacturers' heat ranges, because it will change from brand to brand. Now, switching gears to the installation portion of the video. Just like I had said off top, you're looking at a very simple one out of three wrenches on the difficulty meter here, and about an hour's worth of labor, or maybe less if you've pulled your plugs before. But looking ahead, some things I'd make sure to have on hand here would be a basic socket set, a long extension, and then a torque wrench. So I'm Alex and that's my quick review and breakdown of NGK's Laser Iridium spark plugs, fitting your 2011 through 2017 GT, and the '12 and '13 Boss 302, which can be found right here at

      Product Information

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


      • High Performance Replacement
      • Improves Fuel Economy and Lower Emissions
      • Heat Range: 6
      • NGK Part# LTR6BI-13; NGK Stock# 3789
      • 14mm Thread Pattern
      • Sold as a Set of 8
      • Fits 2011-2017 GT and 2012-2013 BOSS Mustangs


      Regular Maintenance. Replacing your old weak spark plugs is paramount to keep your engine running smoothly and efficiently, so why replace them with the same old sub-par stock plugs when high performance plugs from NGK will improve fuel efficiency and lower your emissions.

      Superior Construction. NGK Laser Iridium Performance Spark Plugs feature an iridium disk that is welded on the center electrode and a platinum disk that is welded on the ground electrode to reduce the wear rate of both surfaces ensuring greater durability and longer life. NGK uses pinpoint precision laser welds to reduce excess debris decreasing the required voltage to bridge the spark gap for a more efficient burn.

      Application. This set of eight (8) NGK Laser Iridium Performance Spark Plugs are specifically designed as a direct fit replacement for the 2011 to 2017 GT and 2012-2013 BOSS Mustangs equipped with the 4 valve 5.0L coyote engine.

      Fitment: 2011 2012 2013 2014 2015 2016 2017 Details

      NGK LTR6BI-13

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (8) Spark Plugs

      Tech Specs


      Customer Reviews (81)

        Reviews of NGK Ignition products have an average rating of 4.8 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Mustang

          • Boss 302 - 12, 13
          • GT - 11, 12, 13, 14, 15, 16, 17

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