IntroductionAn ignition coil/spark coil is an induction coil in an automobile's ignition system that transforms the battery's low voltage to the thousands of volts needed to create an electric spark in the spark plugs to ignite the fuel. The amount of energy in the spark required to ignite the air-fuel mixture varies depending on the pressure and composition of the mixture, and on the speed of the engine. An ignition coil consists of a laminated iron core surrounded by two coils of copper wire. Maxpeedingrods provides ignition coils compatible for Infiniti and compatible for Nissan series.Application2013 compatible for Infiniti EX37 3.7L V6 2013 compatible for Infiniti FX37 3.7L V6 2009-2013 compatible for Infiniti FX50 5.0L V8 2008-2013 compatible for Infiniti G37 3.7L V6 2011-2013 compatible for Infiniti M37 3.7L V6 2011-2013 compatible for Infiniti M56 5.6L V8 2014-2016 compatible for Infiniti Q50 2014-2015 compatible for Infiniti Q60 2014-2016 compatible for Infiniti Q70 V6 3.