Brisk Silver Racing RR14YS Spark Plugs 4 Pack - Ford Focus ST 2013-2018, 2.0L Zetec, 2015 Mustang 2.3L - 1 Step Colder

The Brisk RR14YS spark plugs have a colder heat range compared to the stock spark plugs. Recommended for STOCK 1.6L/2.0L, 2.3L EcoBoost cars. With projected tip design.

Spark Plug Heat Range

Heat range is the measure of how fast the spark plug tip dissipates combustion heat. It must do this in a precise and controlled manner so the spark plug will:

• Stay cool enough to avoid pre-ignition and/or electrode destruction due to detonation.
• Run hot enough to burn off combustion deposits that would otherwise collect on the insulator tip and cause fouling that results in misfire.
• Adapt to specific engine characteristics and widely varying driving/load conditions.

Key Benefits and Applications of Brisk Silver Racing Spark Plugs

• Silver is the best Electric and Heat Conductor - the best material for performance and racing spark plugs
• Superior Ignition Ability Increases Engine Power
• Lower Required Supplied Ignition Voltage
• Good Resistance to Fouling and Easier Starts
• Supercharged / Turbocharged / Nitrous engines
• Excellent for Total Loss Ignition Systems
• Excellent Spark Plug Choice for any Vehicle. Stock or for High Mileage Vehicles and Vehicles With Oil Consumption Problems
• Recommended Gap is .028"
• Approximately 20,000 mile service life