Improving ignition energy will improve power and efficiency! Want these upgrades for your modified Focus? These Accel Coil Packs include one heat range colder spark plugs, for cars with existing modifications, or more boost!
Features and Benefits:
- Up to 15% increase in spark energy
- Improved throttle response
- Shock and vibration resistant high-temperature vacuum applied epoxy
- Maximizes fuel mileage
- Direct OEM replacement
- ODB II compatible
- Sold as a set of 4
- Easy installation
- One heat range colder for performance modifications
- Better conduction and heat dissipation through copper core
- Gapable HP copper plugs
Accel’s Black Supercoil Coil Packs with 1 Heat Range Colder Spark Plugs (140670K-4 and 578C1-4) for 2013-2018 Focus ST and RS will help unleash increased spark energy up to 15%. The Coils are made using High-Temperature Vacuum applied Epoxy that is Shock and Vibration resistant.
These are Direct OEM replacement Coil on plug design. Once installed you will notice your throttle response will increase and have a cleaner idle all the way to redline. This will also help maximize your fuel economy in your 2013-2018 Focus ST and RS.
The Accel HP Copper Core Spark Plugs that come with the Black Coils are 1 Heat Range Colder Plugs. The colder heat range of the included spark plugs is the perfect complement to your existing aftermarket upgrades.
They are Copper core and C-cut design grounding strap plugs. The threads are machined rolled for more precise thread engagement to your cylinder head on any 2013-2018 Focus ST and 2016-2018 Focus RS.
This Kit Includes:
- Set of 4 Black Accel Supercoil Coil Packs (140670K-4)
- Set of 4 Accel 1 Heat Range Colder Spark Plugs (578C1-4)
- 2013-2018 Focus ST
- 2016-2018 Focus RS
Tech Tip: The included Accel HP Copper Core spark plugs are specifically for use in engines that are taking advantage of aftermarket parts or an aftermarket calibration that creates higher than stock cylinder combustion pressures or sustained high rpm. These upgraded, high-quality plugs are one heat range colder than the stock heat range 2013-2018 Focus ST and 2016-2018 Focus RS spark plugs and ideal for forced induction or nitrous applications. For stock applications, please see CJ Pony Parts Number: SPCPK1 and for applications using added boost or alternative fuels (race gas), please see CJ Pony Parts Number: SPCPK3.