NGK Iridium/Platinum Spark Plug Box of 4 (ILKAR7B11) Drivetrain>Clutch Discs 4x -6AN inlet and -6AN

4x -6AN inlet and -6AN outlet

7L V8 engine to deliver intoxicating exhaust notes upon cold start and under heavy acceleration

Its deep-pleated construction provides extended surface area for longer service intervals

And no spacers

The Subaru WRX STI provides a great balance of power

NGK Iridium/Platinum Spark Plug Box of 4 (ILKAR7B11) Drivetrain>Clutch Discs 4x -6AN inlet and -6ANNGK Laser Iridium spark plugs offer the best combination of performance and longevity. Engineered specifically for OE applications, Laser Iridium spark plugs are tested to the highest standards to ensure quality and durability. Iridium tipped center electrode provides durability six times harder than platinum. NGKs high grade pure alumina ceramic and 98 percent pure copper core prevents the spark plug from overheating while providing reliable starts.