Home/2005-10 Mustang Ignition and Electrical Steeda Spark Plug Gap Tool, 2005-08 Mustang GT $50.36 NGK Iridium IX plugs, 3V cold for supercharger, (2008-2010 4.6/5.4 12mm) $15.97 MSD Two Step Launch Master, 4.6 / 5.4 coil on plug $319.08 MSD Blaster Coil on plug, 4.6 3V, set of 8, 2005-07 Mustang $410.68 LRS Start button kit, 2005-09 Mustang $159.48 Ford Performance Spark plugs, 3V cold for supercharger, (2008-2010 12mm) $153.43 Ford Performance spark plug, 3V cold for supercharger, set of 8 (2005-2008 16mm $181.35 Ford Performance Ignition coils, set of 8, 2008-2010 4.6/5.4 3V 12mm spark plug $482.82 Autolite HT1 spark plugs, 4.6 / 5.4 3V, 2005-07 Mustang GT $19.19 Autolite HT0 spark plugs, 4.6 / 5.4 3V, 2005-07 Mustang GT Supercharged $18.96