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Price: $34.99
This is a set of eight NGK TR-6 V-Power Spark Plugs designed for a 2007-2014 Mustang Shelby GT500 with a 5.4 or 5.8 and are one heat range colder than stock to help reduce the chances of detonation and spark blowout. They work well on stock set ups and are a must for increased boost levels. They are professionally gapped to .034 and ready to install (we recommend that gap be verified prior to installation). This is the same plug that JSR uses on their 650hp Mustang Cobra running 18.5 psi with a NOVI 2000 supercharger and have also been used in applications of over 25 psi.
Don’t be fooled by crazy split fire type plugs that can cause detonation! There is no better spark plug for supercharged/turbocharged mustangs.
This set of eight plugs will be shipped in a small (1-3 day) flat rate priority box.
At John Smith Racing we are dedicated to ensuring you are satisfied with your purchase, please let us know if you are not 100% satisfied for any reason. Feel free to contact us for product questions or customer service, our normal business hours are 9am – 6pm M-F and 9am – 1:30pm Sat PST.Local pick up is also available at our retail showroom and installation facility located in Oceanside, CA.
Thanks for looking, and make sure to check outour eBay Storefor additional Mustang performance parts! Most items are shipped same or next business day with tracking. Free shipping is for USPS and UPS ground.Alaska, Hawaii, Guam, and Puerto Rico shipments do not qualify for free UPS ground shipping, please wait for invoice or contact us for a shipping quote.
8.25% California Sales Tax added to CA addressees
Not liable for improper installation.