Accel Spark Plug HP Copper Core One Heat Range Colder Set Focus ST 2013-2018/Focus RS 2016-2018

Accel:
578C1-4
Rating:
35% of 100
MSRP $18.82
$17.99
You save $0.83

Set of Accel HP Copper Core One Heat Range Colder Spark Plugs for 2013, 2014, 2015, 2016, 2017 and 2018 Focus STs and 2016, 2017 and 2018 Focus RSs.

When you are looking to further improve the performance of your 2013-2018 Focus ST or 2016-2018 Focus RS, these new HP Copper Core One Heat Range Colder Spark Plugs are a great choice. The colder heat range of these spark plugs is the perfect complement to your existing aftermarket upgrades.

Accel Spark Plug 578C1-4 Features and Benefits:
- Set includes 4 total spark plugs
- One heat range colder for Focuses with performance modifications
- Better conduction and heat dissipation through copper core
- C-cut design un-shrouds the spark for a better burn
- Machine rolled threads for precise thread engagement
- Gapable HP Copper plugs

If your 2013-2018 Focus ST or your 2016-2018 Focus RS utilizes aftermarket parts or an aftermarket calibration for increased cylinder combustion pressure or sustained higher RPMs, this set of HP Copper Core Spark Plugs are engine specific to your needs. Unlike other brand name spark plugs, Accel's new spark plugs will decrease the chance of a misfire and improve your heat dissipation through the use of copper. As opposed to Iridium or Platinum spark plugs, this Set of HP Copper Core spark Plugs are gapable for dialed-in engine power.

Tech Tip: These 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: SP5784F and for applications using added boost or alternative fuels (race gas), please see CJ Pony Parts Number: SP578C24F.

Order this Set of Accel 578C1-4 HP Copper Core One Heat Range Colder Spark Plugs for your 2013, 2014, 2015, 2016, 2017 or 2018 Focus ST or 2016, 2017 or 2018 Focus RS today from CJ Pony Parts.

California Residents: Proposition 65 Warning

Vehicle Fitment

This product will fit the following Focus years:

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