An Induction Coil. placed on each sparkplug of a Vehicle and used with and (ECU) and a Camshaft or Crankshaft Position Sensor For Timing. to transform a vehicles Battery Voltage to a much higher Voltage needed to create proper Spark in The Spark Plug. used with a Distributor For Timing.

COIL ASSEMBLY-IGNITION Direct Ignition CoilIgnition Coil

Fits Legacy, Outback

Ignition Coil
A failed ignition coil in your Subaru can lead to anything from an intermittent misfire to a car that won't start.