Racing Spark Plug - Set Of Four

When adding the horsepower (heat) of the Stage 2 software upgrade for the Gen3 engine, it is recommended to use a colder set of spark plugs to maintain efficiency and avoid engine damage. These plugs are 2 heat ranges colder to avoid pre-ignition yet provide enough heat to avoid fouling. When adding over 100 horsepower to your engine, the correct plug set is extremely important. These plugs will also need to be changed out more frequently than standard plugs.

• Racing Plug (Heat Range 9)
• Fine Wire Center Electrode
• Extra Long Reach

NGK Cold Racing Plugs:

• Thread Size: 14mm
• Thread Pitch: 1.25mm
• Seat Type: Gasket
• Resistor: Yes
• Resistor Value: 5K Ohm
• Reach: 26.5mm (1.04")
• Hex Size: 5/8" (16mm)
• Terminal Type: Solid
• Overall Height: ISO
• Gap: .028" (0.7mm)

Center Electrode

• Material: Iridium
• Type: Fine Wire
• Size: 0.6mm
• Projection: Projected
• Ground Electrode
• Material: Nickel
• Type: Standard
• Shape: Taper Cut
• Quantity: 1
• Specifications
• Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.