The EcoBoost engine operates under extreme conditions including high cylinder pressures. Engines running higher boost levels can benefit from a stronger spark.
The Pertronix Flame Thrower Coil Upgrade features 15% more available spark energy resulting in more power, smoother running and a more efficient engine. Installation is easy, designed to perfectly fit the factory mounting holes for direct OE replacement fit and OEM style factory connectors plug directly into factory wiring harness and lock directly into place
Price includes a set of 4 coils.
NGK Iridium Spark Plug Set LTR71X-II
Pre-gapped by Mountune.The EcoBoost engine operates under extreme conditions including high cylinder pressures. The spark plugs are subject to rapid wear rates, even at standard performance levels. Engines running higher boost points or increased levels of tuning can experience reduced spark plug life resulting in lower engine performance, misfires and rough idle. Increased wear is typically seen in the form of increased spark plug gap and degradation of the electrode. Using spark plugs that are optimized for increased power insures maximum performance. Includes pre-gapping by Mountune to optimized setting.
The NGK LTR71X-II is one step colder than the original spark plug and perfect for those running additional boost pressure and typical bolt on modifications. Price includes a set of 4 and includes gap setting !
Application:
Focus ST 2013-2018
Features:
- Smoother acceleration
- Perfect for high boost street use
- Spark Plugs Pre-gapped by Mountune to .028"
- Less chance of misfire
This part has been designed and is intended for off-highway application only. Installation of this part on a vehicle that is driven on public roads may violate U.S. and Canadian laws and regulations relating to emission requirements and motor vehicle safety standards.
Click Here for Emissions compliance information.
Works Well 
