NGK V-Power Spark Plugs - Heat Range 6 (03-04 Cobra; 07-14 GT500)

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 performance V-Power plugs from NGK will improve fuel efficiency and lower your emissions.Superior Design. NGK V-Power Performance Spark Plugs feature a copper core for its superior conductivity and a durable nickel alloy tip to assure a strong spark to keep your stang running at it's peak efficiency. The V-Power plug features a unique V-Groove that allows the spark to happen at the edge of the center electrode, so that the heat is not absorbed by the electrode itself, resulting in a complete efficient burn.Application. This set of eight (8) NGK V-Power Performance Spark Plugs are specifically designed as a direct fit replacement for the 2003-2004 SVT Cobra and the 2007-2014 Shelby GT500 Mustangs. Fitment: 2003 2004 2007 2008 2009 2010 2011 2012 2013 2014 NGK V-Power Spark Plugs - Heat Range 6 (03-04 Cobra, 07-14 GT500)