

Physical products may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed, it is non-refundable.
Digital Products, such as MPT Tunes and HP Tuners Credits, are not covered by this.
Please see our Refund Policy or contact an MPT Expert for more information.
MPT is proud to offer free shipping on most orders over $149.
Free Shipping applies only to the contiguous United States. Shipping and handling charges will apply to all orders outside the contiguous US, with the buyer being responsible for any duty fees or taxes their home country may charge to import goods.
With Free Shipping, we will choose the best shipping method for the order. We use all major carriers, including USPS, FedEx, UPS, and DHL.
Items not stocked at our location may incur additional lead-time or charges.
Please our Shipping Policy for more information.


Proposition 65 (Safe Drinking Water and Toxic Enforcement Act of 1986) is a California law that applies to all companies selling products in California. Proposition 65 requires warnings if a product contains any listed chemical present above very low levels that are known to cause cancer, birth defects or other reproductive harm. Proposition 65’s warning standards are among the most stringent in the world. Proposition 65 is not a product safety law, but rather a “right-to-know” law. Businesses are required to provide warnings to comply with Proposition 65. These warnings are required to be in place for all products offered for sale in California.
There are over 800 chemicals on the Proposition 65 list, which is administered by California's Office of Environmental Health Hazard Assessment (OEHHA), a part of the California Environmental Protection Agency. The list includes naturally occurring and man-made chemicals. Proposition 65 warnings can be seen for a wide variety of everyday consumer products, including Automotive Performance products, and warnings can be seen posted throughout California in a variety of establishments such as hotels, restaurants, automobile dealerships/repair shops, and retail stores just to name a few.
To comply with the requirements of Proposition 65, this warning is present on all products sold by MPT.
More detailed information can be found by going to:
https://www.p65warnings.ca.gov/
Enhance your vehicle's performance with the NGK 95605 Ruthenium HX Spark Plugs, specifically engineered to support higher efficiency and performance in high-performance engines. This set of six spark plugs utilizes advanced Ruthenium technology to deliver exceptional ignitability and long-lasting durability. Ideal for enthusiasts seeking to optimize their engine's output, these spark plugs are designed to handle the demands of increased power and heat stress.
Easy to install for anyone with basic mechanical skills, installation typically requires less than an hour, making it accessible for DIY enthusiasts and professional mechanics alike.
Designed for a range of vehicles, particularly those requiring high-performance output. Compatible with various makes and models; please verify with the latest manufacturer data for exact fitment.
If you have any questions about this product or to report product description inaccuracies, contact the MPT Performance experts at (407) 636-7077 or by email.
MPT is proud to offer free shipping on most orders over $149.
Turnaround Times:
Special Considerations:
A Return Authorization Number is required for all returns. Please contact an MPT Expert to obtain an RA # before sending anything back to us for any reason.
MPT tuning charges and license fees are Non-Refundable. The sale is final when MPT has sent the tune file over email. This includes both new tune purchases and tune updates.
Products other than MPT tunes, digital products, and MPT decals may be returned within 30 days for any reason, provided that the product has not been installed and is in brand new, unused condition with the original packaging. Once a product has been installed it is non-refundable. We reserve the right to deny the return, should the product be received and it display signs of installation or unmentioned damage.
For vehicle programmers/tuners, the vehicle must be returned to stock if a program was installed. If a tuning device is returned and has not been returned to stock, a refund will not be issued, and your tuner will not be sent back without a shipping and handling fee.
The customer is responsible for all shipping charges incurred during the return process.
Amount Refunded:
•Returns post marked before 30 days from the date the item was received will be refunded the purchase price, minus a 25% restocking fee and the cost of shipping.
•After 30 days, all sales are Final.
•Shipping charges along with any package insurance are non-refundable. If your purchase was shipped with our Free Shipping option, the cost of the shipping will be subtracted from the total refund amount.
HP Tuners Credits are assigned to the HP Tuners product with the submitted serial number and cannot be transferred. Once you load a tune to your vehicle with the RTD, these credits are Non-Refundable.
Digital products and files that have no ability to be taken back physically, such as an SCT Tuner Unlock, are Non-Refundable.
nGauge Tune License Fee is included in your initial purchase of MPT tunes for the nGauge. This fee is factored into the price of the tunes and becomes Non-Refundable when the stock file has been emailed to MPT.
MPT Decals are Non-Refundable, once they have been received by the customer.
These colder spark plugs deliver excellent performance for tuned engines, with customers reporting smoother idle, better acceleration, and resolved misfiring issues. "The plugs really smoothed out my idle" and improved MPG. Most arrive properly gapped, though some require adjustment. Pricing noted as slightly high, but quality justifies cost.
Packaging was excellent, protecting the fragile spark plugs. Shipping was quick, and hassle-free.
I bought the spark plugs when I ordered my tune ans SCT almost 2 years ago..
Everything has been great with MPT!
Excellent service, communication, tips and recommendations!
Thanks you James, Ross, all the guys!
Good spark plugs, no issues and it fixed my misfiring. They came at .31 give or take .02 , make sure you get the tool for consistent spacing. I brought my to .28 MPT is very fast at sending stuff out
The plugs really smoothed out my idle and got rid of the full throttle surge I was feeling. Paired with the tune and the 170 degree thermostat it’s a different truck. I love the power and quicker shifts. So much fun to leave people in the rear view.
Great product, these went very well with the SCT preloaded tuner, gave the 14 a new spark.
MPT is great to work with, it doesn't matter if you buy parts or a tune it's excellent service from start to finish. They answered any and all of my questions. Didn't feel like my questions were unimportant. Very professional. I'm going to contact them again real soon to finish the ALKY CONTROL water methanol injection system tune for my 2018 f 150 3.5 Ecoboost.
Great plugs if your running a hotter tune
Mpt is simply the best period!! Anything they recommend is extremely good.
Swapped out the spark plugs when changing out the fuel injectors since we have to take the intake plenum to get the passenger side plugs…me being finger happy I bought these not looking at the pre gap so I did have to open up the gap to fords spec. Retuned for the new injectors and running e85. It is running much better and I’m getting better MPG.
Hands down the best company for performance, tunes, accessories, merch best costumer service would never chose any other company but MPT
Great plugs and the tune is working awesome thanks to mpt guys
They have spark plugs in stock and were helpful
Came perfectly gapped
Better ignition and smoother acceleration.
These plugs made my truck run the best it ever has. Definitely recommend. mpt shipped these right away
👍
Great-service, with fast shipping!
The truck was due for spark plugs, and since MPT tuned my truck and recommends cooler plugs, I got these and they've been great. Very happy with all my MPT interactions.
The plugs came as expected with spot on pre`gapping. Pricing was great and MPT provided confidence in.my purchase apart from all the various recommendations on the internet. MPT built my tune which performs flawlessly and continues to provide guidance and quality recommendations keeping my F150 3.5L ecoboost at the top of its game.
Mods: S&B Cold Air Intake, SCT X-4, , Catch CanAfter talking to the guys at MPT about what I was wanting for/out of my truck, they nailed the tunes down last year and I've been incredibly impressed with the results and professionalism of the team. When it came time to change out my spark plugs, once again I reached out to MPT because it was a no brainer. I reached out to MPT a few weeks back and they took care of me since I was out of state and needed the plugs before continuing on my trip for my 18 F-150 2.7 Ecoboost. Heck it only took me a day to drive to North Arkansas from East Texas and the plugs beat me there! My truck runs much smoother across the board, and when she comes into boost I know the right plug is in there and she doesn't miss a beat! For those of you who have built cars, engines, had them tuned, etc. over the years, you know that if your tuner tells you to go with something such as certain spark plug(s), or fuel, or exhaust, you tend to take their word on it because this is what they do, all day every day. That being said if you're thinking about getting new plugs for your ride, make the call and deal with MPT and get them ordered today because you can have the baddest motor, the stickiest tires, etc. etc. but a bad/fouled up spark plug can make a real bad day real fast. Thanks again to the team at MPT, it's going to be Intercooler time very soon!
I was suffering from misfires with only 25k on stock plugs, These seem to have totally cured those issues and seems to have better power. Just seem to be a bit pricey.
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My brother told me about MPT and i was looking for something to help the confused shifting on my 2020 F150. It worked immediately. The truck drives and shifts way better, no more clunky shifting. I still run 87 in it and there’s considerable more power to the wheels. 5 stars for sure.
I was searching for tunes for quite some time, and had heard good things about MPT on Facebook groups/ forums. I am so glad I went with them. Their tunes truly changed my truck for the better and made it enjoyable to drive. I’ve always been an adrenaline junkie of some sort and my daily driver beating most things I’ll encounter on the streets is a really fun experience. Highly recommend MPT to anyone with a 21+ 3.5, you won’t be disappointed! The customer service has been quick and Jose had me my base file super quick!
Can’t wait to hit the dyno and get some real numbers to show off!
I was on the fence about who to use for custom tunes. The customer service from MPT is why I decided to go with them. They answered all of questions promptly and have been awesome from the beginning.
The tune speaks for itself. The truck now runs and shifts the way it should have when it came from Ford. No more searching for gears and when you need to put your foot down, it is a whole new animal! If you’re on the fence as well, just go for it. You won’t be disappointed.
Installed MPT 93 tune & S & B cold air intake..
Wow, what a difference, no lag when accelerating, smooth shifting..couldn't be happier..
Appreciate the customer service.
Man what a difference! I was running a tune from another company previously and after making the switch I am so impressed. The other company had rough shift timing, and what I can only describe as “dirty power”. After getting wit MPT, it’s smooth, quick and clean. Would 100% recommend.