These NGK Laser Iridium spark plugs are a top - notch choice for multiple Subaru models. They offer excellent performance and long - lasting use. Fitment includes the 2009 - 2013 Subaru Forester, 2008 - 2014 Subaru WRX, 2013 - 2018 Subaru WRX STI, 2005 - 2009 Legacy GT, 2005 - 2009 Subaru Outback, and 2008 - 2009 Subaru Tribeca. Key features: Trivalent metal plating gives great anti - corrosion and anti - seizing abilities. Corrugated ribs stop flashover. The pure alumina silicate ceramic insulator provides high strength and good heat transfer. The copper core helps remove heat. Triple seals prevent leakage. They can last up to 100k miles and come with a 60 - day manufacturer warranty. Spark plug details: Shell has a 14mm thread diameter, 1.25mm thread pitch, flat seat type, 26.5mm reach, 5/8' (16mm) wrench diameter, solid terminal type, and a 0.8mm gap. The center electrode has an iridium tip and a copper core. The ground electrode is made of nickel. Specifications: It has a 5k Ohm resistor, a 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. NGK Laser Iridium spark plugs are often the original equipment choice, combining performance and longevity. The iridium tip is 6 times harder than platinum for strong ignitability and long life. Many have a platinum pad on the ground electrode for even wear in DIS ignition systems. Import Image Racing is an authorized dealer, ensuring you get authentic products covered by the manufacturer warranty.
Using these NGK Laser Iridium spark plugs is straightforward. First, make sure your vehicle is turned off and cool. Refer to your vehicle's manual to locate the spark plugs. Remove the old spark plugs carefully using the appropriate wrench size (5/8' or 16mm for these plugs). Check the gap of the new spark plugs; it should be.031' (0.8mm). Then, install the new spark plugs into the spark plug holes and tighten them according to the torque specs: 18 - 25.3 lb. ft. for cast - iron engines and 18 - 21.6 lb. ft. for aluminum engines. When handling the plugs, avoid dropping them as it could damage the electrodes. As for maintenance, these plugs are designed to last up to 100k miles. However, it's a good idea to check them periodically for signs of wear or damage. If you notice any performance issues with your vehicle like rough idling or poor acceleration, it might be time to inspect the spark plugs. Remember, Import Image Racing is an authorized dealer, so if you have any problems, you're covered by the 60 - day manufacturer warranty.
