Home/2005-10 Mustang Ignition and Electrical Steeda Spark Plug Gap Tool, 2005-08 Mustang GT $49.26 MSD Two Step Launch Master, 4.6 / 5.4 coil on plug $309.83 MSD Blaster Coil on plug, 4.6 3V, set of 8, 2005-07 Mustang $398.80 LRS Start button kit, 2005-09 Mustang $149.23 Ford Performance Spark plugs, 3V cold for supercharger, (2008-2010 12mm) $138.57 Ford Performance spark plug, 3V cold for supercharger, set of 8 (2005-2008 16mm $158.36 Ford Performance Ignition coils, set of 8, 2008-2010 4.6/5.4 3V 12mm spark plug $436.11 Autolite HT1 spark plugs, 4.6 / 5.4 3V, 2005-07 Mustang GT $13.63 Autolite HT0 spark plugs, 4.6 / 5.4 3V, 2005-07 Mustang GT Supercharged $14.52