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Why NGK Iridium?

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Why NGK Iridium?

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Increased Durability and a Higher Melting Point compared to Platinum, better center electrode anti-oxidation and anti-erosion, improved ignition, superior anti-fouling, lower required voltage, and a new metal shell plating process for better anti-corrosion. One Step Colder plugs are recommended for those Legacy GT owners with heavy modifications. These NGK plugs will get your Legacy running smoother and free up power through increased efficiency and heat resistance. NGK spark plugs are available in stock heat or one step colder for Legacy GT models running approximately 100 horsepower over stock. Please make sure you choose the correct NGK spark plugs for your Legacy GT below. Manufacturer: NGK // Popular tags: None My tags: Sign in to enter tags Name of your friend: E-mail of your friend: Your name: Your e-mail: Your message: NGK Iridium STOCK Heat Spark Plugs for 04-07 STI, 05-08 Legacy GT Part#ngk6619 To ensure that a person, not an automated program, is filling this form, please en

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