Brisk Silver Racing ER12S Spark Plug for Gen 3 HEMI Performance Engines

The Brisk Silver Racing ER12S Spark Plug is engineered for enthusiasts and racers looking to maximize the ignition performance of their Gen 3 HEMI engine. Unlike conventional spark plugs that use nickel or platinum electrodes, the ER12S features a pure silver center electrode, offering superior electrical conductivity and faster spark energy transfer. This allows for more efficient combustion, improved throttle response, smoother engine operation, and dependable ignition under demanding conditions. Whether you’re running a naturally aspirated street car or a high-horsepower supercharged or turbocharged HEMI build, the Brisk ER12S is designed to deliver consistent performance where it matters most.

A strong ignition system is critical to producing reliable horsepower, especially as cylinder pressures increase with performance modifications. The Brisk ER12S is designed to fire consistently under high boost, elevated RPM, and aggressive tuning, making it a popular choice among performance enthusiasts. The silver electrode dissipates heat efficiently while providing an extremely powerful spark, helping reduce the chance of spark blowout and misfires. This results in cleaner combustion, more stable idle quality, and improved power delivery throughout the RPM range.

For modified Gen 3 HEMI engines equipped with aftermarket camshafts, ported cylinder heads, upgraded fuel systems, larger throttle bodies, E85 conversions, nitrous oxide systems, or forced induction, spark plug performance becomes increasingly important. The Brisk ER12S provides the durability and ignition strength needed to support these demanding combinations while maintaining excellent drivability. Its racing-inspired design has made it a trusted choice for applications ranging from daily-driven street cars to dedicated drag racing and roll racing builds.

At Dusterhoff Racing, we recommend premium ignition components because proper spark delivery plays a major role in maximizing horsepower, protecting the engine, and achieving consistent tuning results. When paired with custom ECU calibration, quality ignition coils, and supporting performance modifications, the Brisk Silver Racing ER12S Spark Plug helps unlock the full potential of your Gen 3 HEMI engine. Whether you’re upgrading your 5.7L HEMI, 6.1L SRT, 6.2L Hellcat, 6.4L 392, Demon, Redeye, TRX, Trackhawk, or Durango Hellcat, these plugs offer the ignition performance needed for serious horsepower.

For additional ignition upgrades and engine performance components, browse our Spark Plugs & Ignition category to complete your Gen 3 HEMI build with components trusted by enthusiasts and racers alike.

Specifications & Features
Manufacturer: Brisk Racing
Product: Silver Racing ER12S Spark Plug
Manufacturer Part Number: ER12S
Product Type: High Performance Racing Spark Plug
Electrode Material:
Pure Silver Center Electrode
Ground Electrode:
High-Strength Steel Alloy
Heat Range:
ER12S Racing Heat Range
Thread Size:
14 mm
Thread Reach:
OEM Style
Seat Type:
Gasket Seat
Resistor Type:
Yes
Quantity:
Sold Individually
Vehicle Compatibility:
Select Dodge, Chrysler, Jeep, and RAM vehicles equipped with Gen 3 HEMI engines
Engine Compatibility:
5.7L Gen 3 HEMI
6.1L HEMI
6.2L Supercharged Hellcat
6.4L (392) HEMI
Year Compatibility:
Varies by vehicle application (verify fitment before ordering)
Color:
Silver / Metallic Finish
Approximate Weight:
0.15 lb. each
Superior Electrical Conductivity
Excellent Heat Dissipation
High-Energy Spark Output
Helps Reduce Spark Blowout
Supports High Boost and High RPM Applications
Improves Throttle Response
Promotes Efficient Combustion
Ideal for Naturally Aspirated and Forced Induction Engines
Compatible with E85, Race Gas, Pump Gas, and Nitrous Applications
Suitable for:
Street Performance
Road Racing
Drag Racing
Roll Racing
Daily Driving
High-Horsepower Builds