Fitment Information:
2004-2007 Subaru STI
2005-2009 Subaru Legacy GT
Features:
- Sold as a set of 4 spark plugs
- Engineered Specifically for OE Applications
- 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
- Longevity: 100k Miles
- 60 Days manufacturer Warranty
Shell
Spark Plug Thread Diameter: 14mm
Thread Pitch: 1.25mm
Seat Type: Flat
Reach: 26.5mm (1.04″)
Wrench Diameter: 5/8″ (16mm)
Terminal Type: Solid
Gap: .031″ (0.8mm)
Center Electrode
Electrode Tip Material: Iridium
Electrode Core Material: Copper
Ground Electrode
Material: Nickel
Type: Standard
Shape: Taper Cut
Specifications
Resistor: Yes
Resistor Value: 5k Ohm
Manufacturer Heat Range: 6
Torque Specs: Cast Iron: 18-25.3 lb. ft. Aluminum: 18-21.6 lb. ft.
NGK Laser Iridium spark plugs offer the best combination of performance and longevity. Fine wire iridium tipped center electrode and fine wire platinum tipped ground electrode ensures slow wear rate providing stable idle, superior anti fouling, improved fuel efficiency and lower emissions.
Import Image Racing is an authorized dealer for NGK Spark Plugs. Purchasing from us guarantee’s that your NGK products are always authentic and covered by manufacturer warranty.