Ford Performance Cold Spark Plug Set - Focus ST/RS / Mustang Ecoboost (Set of 4)

Having the right spark plug for boosted engines is paramount.  When you add cylinder pressure through increasted boost, a colder spark is required to prevent detonation and potential engine damage. 

The performance Irridium Spark Plugs are 2 heat ranges (2-steps) colder than the stock, original equipment spark plugs that come in the Focus ST, Focus RS and Mustang Ecoboost.  

These are the same spark plugs that are included in the Ford Performance Power Upgrade Pack.  

NOTE: Refer to Tuning Instructions and/or Tuner for correct heat ranges for your application.

About Livernois Motorsports

Livernois Motorsports & Engineering has become best-known for revolutionary tuning and high-end performance products for late model Ford, Mopar and GM vehicles. The company is proud of its deep roots in the automotive and motorsports industry dating back to its original founding in 1949. Since then the company has expanded its product line to include tuning and performance components for desert racing, SCCA and drag racing. Livernois Motorsports is proud to engineer, test and manufacture its products in the USA.

FEATURES:

• For use in engines with higher than stock cylinder combustion pressures 
• Two heat ranges colder than the stock 2.0L/2.3L EcoBoost engine spark plug
• Sold in engine sets of 4 
• Spark plugs gapped to 0.028-inch (0.71mm)