These NGK Laser Iridium spark plugs are a perfect blend of high performance and long - lasting durability. They're engineered specifically for multiple Subaru models including the 2009 - 2013 Forester, 2008 - 2014 WRX, 2013 - 2018 WRX STI, 2005 - 2009 Legacy GT, 2005 - 2009 Outback, and 2008 - 2009 Tribeca.
Key Features:
- Trivalent metal plating offers excellent anti - corrosion and anti - seizing protection.
- Corrugated ribs stop flashover.
- Pure alumina silicate ceramic insulator provides great strength and efficient heat transfer.
- Copper core helps remove heat effectively.
- Triple seals prevent leakage.
- They can last up to 100k miles and come with a 60 - day manufacturer warranty.
Specifications:
- Shell: 14mm thread diameter, 1.25mm thread pitch, flat seat, 26.5mm reach, 5/8' (16mm) wrench diameter, solid terminal type, and 0.8mm gap.
- Center Electrode: Iridium tip and copper core.
- Ground Electrode: Nickel material.
- Other Specs: 5k Ohm resistor, manufacturer heat range of 6, and torque specs of 18 - 25.3 lb. ft. for cast iron and 18 - 21.6 lb. ft. for aluminum.
The iridium tip is six times harder than platinum, ensuring strong ignitability and a long lifespan. Many Laser Iridium spark plugs have a platinum pad on the ground electrode for even wear in DIS ignition systems. Import Image Racing is an authorized dealer, so you're guaranteed authentic products with manufacturer warranty.
Using these NGK Laser Iridium spark plugs is straightforward. First, make sure your vehicle's engine is cool. Use a proper spark plug socket wrench to remove the old spark plugs. Check the gap of the new spark plugs; it should be 0.8mm. Then, carefully install the new spark plugs into the engine, but don't over - tighten them. Follow the torque specs: 18 - 25.3 lb. ft. for cast iron engines and 18 - 21.6 lb. ft. for aluminum engines.
Here are some important notes. Always wear gloves when handling the spark plugs to avoid getting oil or dirt on them. If you're not experienced with engine work, it's a good idea to have a professional install them. Also, keep in mind that these spark plugs are designed for specific Subaru models, so don't use them in other vehicles without checking compatibility.
For maintenance, these spark plugs are built to last up to 100k miles. However, it's a good idea to inspect them periodically, especially if you notice any changes in your vehicle's performance, like rough idling or reduced fuel efficiency. If you see any signs of damage or excessive wear, replace them as soon as possible. And remember, they come with a 60 - day manufacturer warranty, so if you have any issues during this period, you can contact the dealer.
