Best Spark Plugs for 3.5 Ecoboost: OEM and Replacement Plugs Reviewed
Ford's 3.5 EcoBoost provides outstanding performance per liter and fits modern ecology requirements at the same time. To make it happen, engineers used the best technology available right now, including an ignition system and spark plugs themself. In this article, we'll review OEM plugs and see what are the best replacements for them.