Brisk ER12S Silver Racing Spark Plug – 2 Heat Range Colder (2015–2023 Hellcat)

Race-Proven Spark Plug for High-Boost Hellcat Applications

The Brisk ER12S Silver Racing Spark Plug is engineered for extreme performance in 2015–2023 Dodge Challenger and Charger Hellcat platforms. Designed to be 2 heat ranges colder than stock, this plug is ideal for high-horsepower builds utilizing forced induction, nitrous, or advanced fueling systems.

Silver Core Technology for Maximum Performance

Silver is the best electrical and thermal conductor of all metals, delivering superior spark energy and heat dissipation compared to traditional materials like copper or iridium. This results in stronger spark, improved combustion efficiency, and increased reliability under extreme conditions.

Designed for Boost, Nitrous & High Compression Engines

The ER12S is widely used in professional racing environments and is equivalent to an NGK heat range 8. It excels in applications with turbochargers, superchargers, nitrous systems, and ethanol/methanol injection, making it a top choice for serious performance builds.

Advanced Electrode Design

Featuring a 1.5mm fine wire silver center electrode and a cut-back ground electrode, this plug provides exceptional spark exposure and faster flame propagation. The result is improved ignition efficiency, especially in high RPM and high boost environments.

Improved Ignition & Durability

With lower ignition voltage requirements and higher dielectric strength, the ER12S reduces stress on ignition components while maintaining reliable spark even under demanding conditions. It also offers excellent resistance to fouling during light load operation.

Key Features

• 2 heat ranges colder than stock – ideal for high-performance builds
• Silver core for superior electrical and thermal conductivity
• 1.5mm fine wire center electrode for powerful spark
• Cut-back ground electrode for improved flame propagation
• Low ignition voltage requirement reduces coil stress
• Excellent heat dissipation under high load
• Resistant to fouling in both high and low load conditions
• Equivalent to NGK heat range 8

Technical Specifications

• Thread Size: 14mm
• Reach: 1.04" (26.5mm)
• Hex Size: 5/8" (16mm)
• Seat Type: Gasket
• Tip Style: Non-Projected
• Resistor: Yes

Vehicle Fitment

• 2015 Dodge Challenger SRT Hellcat
• 2016 Dodge Challenger SRT Hellcat
• 2017 Dodge Challenger SRT Hellcat
• 2018 Dodge Challenger SRT Hellcat
• 2019 Dodge Challenger SRT Hellcat
• 2020 Dodge Challenger SRT Hellcat
• 2021 Dodge Challenger SRT Hellcat
• 2022 Dodge Challenger SRT Hellcat
• 2023 Dodge Challenger SRT Hellcat
• 2015 Dodge Charger SRT Hellcat
• 2016 Dodge Charger SRT Hellcat
• 2017 Dodge Charger SRT Hellcat
• 2018 Dodge Charger SRT Hellcat
• 2019 Dodge Charger SRT Hellcat
• 2020 Dodge Charger SRT Hellcat
• 2021 Dodge Charger SRT Hellcat
• 2022 Dodge Charger SRT Hellcat
• 2023 Dodge Charger SRT Hellcat

Recommended Use

• Forced induction (supercharged/turbocharged) applications
• Nitrous oxide systems
• E85, methanol, and alternative fuel setups
• High compression and high RPM race engines

For Hellcat owners pushing serious power, the Brisk ER12S Silver Racing Spark Plug delivers unmatched ignition performance, durability, and reliability under the most demanding conditions.