NGK Iridium IX Performance TR7IX 6510 Spark Plugs (2011-2014 Mustang GT, Boss)-8 Pack

Perfect for nitrous and force inducted engines Iridium tip for a constant stable spark Improves fuel economy and lower emissions Heat Range: 7 NGK part# LTR7IX-11; NGK stock# 6510 14mm thread pattern Fits 2011-2014 GT and BOSS Mustangs Sold as a set of 8 High Performance. Keeping your Mustangs high performance engine running smoothly and efficiently is important, so routinely replace your old weak plugs with a new set of NGK Iridium IX Performance Spark Plugs for constant reliable spark power. The Iridium IX plugs from NGK will provide improved throttle response, fuel efficiency, lower emissions, and will reduce fouling. Superior Materials. NGK Iridium IX Performance Spark Plugs feature a copper core electrode for its superior conductivity and an iridium tip (which is 6X harder than platinum) for it's extremely high melting point, perfect for keeping your Mustangs high-performance engine running at it's peak. And as an added bonus the Iridium IX plug features Trivalent Metal Plating for it's superior anti-corrosion and anti-seizing properties. Application. This set of eight (8) One Heat Range Cooler NGK Iridium IX Performance Spark Plugs are specifically designed as an upgrade for nitrous or force inducted 2011-2014 GT and BOSS Mustangs equipped with the 4 valve 5.0L Coyote engine. Mustang Fitment: 2011, 2012, 2013, 2014