NGK’s Iridium IX spark plugs are commonly used with higher boost builds in the Evo 1-8 and DSM. Sold individually. Price is for one plug, please adjust quantity as needed.
Vehicle Fitment:
Mitsubishi 4G63
1992-2005 Evolution I-VIII
1990-1999 Eclipse GST/GSX
1990-1998 Talon TSi
1990-1994 Laser RS
1991-1993 Galant VR4
Part Number: BR9EIX
Stock Number: 3981
Heat Range: 9
Thread Size: 14mm
More Info:
NGK IX Iridium Series plugs were designed specifically for the performance enthusiast.
- Fine wire center electrode ensures high durability and a consistently stable spark
- Iridium alloy has an extremely high melting point, perfect for today’s high-tech, high performance engines
- Trivalent metal plating provides superior anti-corrosion and anti-seizing properties
- Corrugated ribs prevent flashover
- Pure alumina silicate ceramic insulator, provides superior strength and better heat transfer
- Copper core aids in heat removal
- Triple seals prevent leakage
Shell:
Thread Size: 14mm
Thread Pitch: 1.25mm
Seat Type: Gasket
Resistor Value: 5K Ohm
Reach: 19mm (3/4″)
Hex Size: 13/16″ (21mm)
Terminal Type: Removable Nut
Overall Height: ISO
Gap: .031″ (0.8mm)
Center Electrode:
Material: Iridium
Type: Fine Wire
Size: 0.6mm
Projection: Non-Projected
Ground Electrode:
Material: Nickel
Type: Standard
Shape: Taper Cut
Quantity: 1
Torque Specs:
Cast Iron: 18-25.3 lb. ft.
Aluminum: 18-21.6 lb. ft.
