NGK Iridium IX LTR6IX-11 Performance Spark Plugs Heat Range 6

Features & Details

Perfect for Nitrous and Force Inducted Engines
Iridium Tip for a Constant Stable Spark
Improves Fuel Economy and Lower Emissions
Heat Range: 6
NGK Part# LTR6IX-11; NGK Stock# 6509
14mm Thread Pattern
Fits New GM LT1 Engines, 2011-2017 GT and 2012-2013 BOSS Mustangs,
Sold as a Set of 8