Spark Plug Connector, Straight Fits Various Mercedes Models,for Direct Ignition Unit

Direct Ignition Unit Ignition Coil Connector by Karlyn STI. Requires 4 per Vehicle. Wearing the Karlyn STI brand Ignition coils so you can have your entire ignition system running the way it did when it was brand new. They work by creating the spark that turns the fuel into power, and when you have a new one installed you can stop worrying about symptoms like missing, rough idling or difficulty starting the engine. When you have a new one working properly you can even enjoy better fuel efficiency, which allows you to spend less money on fuel every week so you have more money for more fun things.