Home/2011 Mustang Ignition NGK Iridium Spark Plugs, LTR6IX, 3.5 Ecoboost $12.57 NGK Iridium Spark Plugs, LTR7IX-11, 5.0 / 6.2 / Ecoboost / Godzilla $11.63 MSD Two Step Launch Master, 2011-2016 Mustang GT $447.25 Ford Performance Irridium spark plugs (8), cold for boost, 2011-2021 Mustang GT $97.93 Don’t see what you are looking for? Give us a call or send an email. We sell thousands of additional parts not listed on the website.