Improving ignition performance can mean the difference between more horsepower! Looking for spark in your Focus? These Accel Blue Coil Packs are bolt-in performance replacements, complete with one heat range colder plugs for Focuses with existing modifications.
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 Fir Replacement
- ODB II Compatible
- Sold as a Set of 4
- Easy Installation
- One Heat Range Colder for Focuses with Performance Modifications
- Gapable HP Copper Plugs
Accel’s Blue Supercoil Coil Packs with 1 Heat Range Colder Spark Plugs (140670B-4 and 578C1-4) will help unleash an increased spark energy up to 15%! The Coils are made using High-Temperature Vacuum applied Epoxy that is Shock and Vibration resistant.
These are a 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 Blue Coils are 1 Heat Range Colder Plugs. They are Copper core and C-cut design grounding strap plugs. The colder heat range is perfect for existing aftermarket upgrades! The plug threads are machined rolled for more precise thread engagement to your cylinder head.
This Kit Includes:
- Set of 4 Blue Accel Supercoil Coil Packs (140670B-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: SPCPK4 and for applications using added boost or alternative fuels (race gas), please see CJ Pony Parts Number: SPCPK6.