(approx) 2 Hours
Light to Moderate mechanical skill required.
- Customer Submitted:
- How to install Ford Motorcraft OEM Spark Plugs on your 2008-2010 GT Mustang
So NGK's Laser Iridium plugs we've got here today are going to be a great option for any of my V6 owners out there that are looking to replace their factory plugs or get into a set of upgraded plugs that are going to help with throttle response and fuel consumption. But not really something that's going to be saving so much money at the pump. NGK's Iridium plugs should also appeal to the owner out there that might be in the process or has already started to do some [inaudible] emission parts. That could be anything from plug wires to coil packs, as everything is going to work hand in hand together. Now, I say that because we've got a lot of V6 customers here that have installed these plugs with some of the aforementioned parts, like coil packs or plug wires. We've heard and you can see it for yourself, the feedback on the product page. You'll see that much more improved throttle response and even, in some instances, smoothing out rough idles. Install-wise, expect an easy one out of three wrenches on the difficulty meter here, and about an hour's worth of wrenching. Now, I do want to mention, when you're shopping for spark plugs, it's really a good idea to pay very close attention to the heat ranges, as they are going to differ from manufacturer to manufacturer. NGK's Iridiums are going to have a heat range of five here. Again, I hate to repeat myself, but it's critical that you pay attention to the heat ranges, because they are going to differ on how hot or cold they are from different manufacturers. Now, I say that, because there's different plugs out there that will exhibit cooler plugs. Pulstar, for example, is going to be a great option for a heavily modified V6, maybe one that has a turbo or a Supercharger on it. So if you're not too familiar with the makeup of a spark plug itself, this is going to feature a copper core electrode, and then the tip itself is going to be iridium. Now, additionally, this is going to feature some trivalent metal plating to ensure that this is not going to corrode and it's going to give you a long-lasting life. Now, at the end of the day, guys, what this all translates to is going to be a much happier and healthier V6, one that's going to heat up faster, you might see some rough idle issues go away, and again one that's going to be a factory upgrade. Price-wise, expect to be spending about $70, which will make these one of the more expensive options out there. You need to take into consideration that NGK has been around for quite some time. You can do a ton of homework on their plugs. But on the flipside here, if you compare that to running down to your local dealer, I probably almost guarantee you that replacing your plugs there are going to run that much more. Installation-wise, you're looking at a pretty easy one out of three wrenches on my difficulty meter here, and about an hour's worth of labor. I will mention, you're going to need a basic socket set, an extension, and a torque wrench. This is a simple spark plug replacement job. You're not looking at anything too hairy here. About an hour's worth of labor, and again a very easy one out of three wrenches on our difficulty meter here. So that'll wrap things up with NGK's IX Iridium plugs, fitting the '05 through '10 and '94 through '97 V6, which can be found right here at americanmuscle.com.
Subscribe to our YouTube Channel
Features, Description, Reviews, Q&A, Specs & Installation
Fitment: 1994 1995 1996 1997 2005 2006 2007 2008 2009 2010 Details
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
March 04, 2020
Everything was great, other than the torque wrench which broke first use. But that’s what I get for paying under $30Helpful (0)
May 15, 2019
Vehicle had a vibration while idleing to include driving on highway. Change to these plugs and engine is running great again.Helpful (0)
May 09, 2019
It's been years since New plugs where installed responds quick againHelpful (0)
April 03, 2019
Pricey, but work as intended
They are a little pricey, but they do what they're supposed to. Don't see any difference in my start-up.Helpful (0)
February 09, 2019
January 2019 replaced the stock plugs on my 2008 V6 convertible @23,000 miles with an upgraded (Accel Super EDIS) coil pack and new 10mm wires. Smoother idle, faster acceleration and to my surprise the throttle lag is all but gone. Its not a V8, but I enjoy the extra HP!Helpful (1)
December 04, 2018
May have got a bad plug
I am sure the plugs are good, but I hade one that seemed like the threads were not cut right. No Problems yet but worries me. The packing was awful, they were just thrown in a big box and allowed to roll around (that may have damaged the threads too). More upset at the lousy packing job the shipping department did. these and other ignition parts just sloshing around in the box.Helpful (4)
November 12, 2018
Spark plug review
Changed plugs, wires and coil. gas mpg went up by 2.5 to 3 per gallon.Helpful (2)
August 26, 2018
Feel the power
I really feel the power, my mustang so freaking fast ,engine running smoothly, I will like to recommend this spark plug,best spark plug I ever put on my engine, thank to American muscle.Helpful (4)
August 14, 2018
My car has Sure woken up with this install there’s no hesitation anymore quick install recommend itHelpful (1)
July 23, 2018
Haven't had in long but the 05 feels like it has more power and response.Helpful (3)
gap What is the recommended gap for these spark plugs
Read the sticker under your hood. Just about every car has one that tells you the spark plug gap size. If you are running a modified engine set up then the gap sizes can change and your performance part dealer should be able to advise you correctly.
Does anyone know if these plugs come pre-gapped. I remember the manual saying somewhere between 0.052 - 0.054 for the gap.
These plugs will come pre-gapped to the stock specifications.
I purchased a set of iridium plugs, 10 mm wires, and a screamin demon coil pack. The wire manufacturer recommends that the plugs be gapped to .065 while the manual recommends .053. Since the new wires are larger and not stock, I would think that the wire manufacturer's advice should be followed. Is this true? Thank you.
I would follow the manufacture's advice when it comes to setting the plugs gap.
Is it necessary to use anti seize and dielectric grease on these? I have heard anti seize compound on the threads and dielectric grease on the electrode is a good idea. Is it really necessary to use these products on these plugs?
It isn't necessary, per se, but it is recommended. The anti-seize on the threads will keep the plug from galling or seizing in the head and make them easier to service in the future. The dielectric grease will help keep dirt and water/moisture out which help deter moisture intrusion, or corrosion, that can cause misfires. Both are inexpensive insurance to make sure that future tune-ups are easier and more straight forward.
Plugs and wires Can I use these plugs with 10 mm Live Wires ?
Yes plug wires have no Bering on the type of plug u use but most of the time platinum and iridium are the better plugs
We would recommend getting a slightly colder plug for a 100 shot.
The NGK Iridium IX Performance Spark Plugs are already "pre-gapped" out of the box ready for installation. No additional gapping is required for these spark plugs for installation.
You will need to have the negative battery terminal disconnected prior to the install. For complete install instructions please take a look into this great guide found here:https://www.americanmuscle.com/ford-sparkplugs-0810gt-install.html
The NGK Iridium IX Performance Spark Plugs will not have any issues with 87 octane fuel.
Only the new coils and wires you have listed would effect the recommended spark plug gap with the NGK Iridium IX Performance Spark Plugs. A spark plug gap of 0.060-0.065" will be ideal for your setup.
The NGK Iridium IX Performance Spark Plugs will be able to handle a 75 shot of nitrous. Though, they will have a shortened lifespan depending on how often you use nitrous.
The NGK Iridium IX Performance Spark Plugs will have no effect on engine sound. most applications will see a slight power increase and a noticeable increase in throttle response.
Hey Jose, So these plugs will come pre-gapped for you and should pair well with the screamin demon coils. The more you gap it the more spark but you want to tailor the spark to the power of the car for the best results
The NGK Iridium IX Performance Spark Plugs work well with stock and modified Mustangs. These will be a better match for a more highly modified car, but will not reduce the performance of your Mustang.
The NGK Iridium IX Performance Spark Plugs do not require a tune, however, if you have a specific set-up that would benefit greatly, you could see a gain in efficiency with a tune.
(approx) 2 Hours
Light to Moderate mechanical skill required.
What's in the Box