NGK Spark Plugs Iridium IX Spark Plug LTR6IX-11

(NGK6509) provides enhanced throttle response and anti-fouling characteristics. With a projected fine-wire center electrode, this plug is engineered for consistent spark and longevity under performance conditions. Key Features: ✓ Type: Iridium IX Performance Plug ✓ Heat Range: 6 (standard) ✓ Thread Size: 14mm ✓ Hex Size: 5/8 ✓ Gap: 0.044″ (1.1mm) pre-set ✓ Application: Great for naturally aspirated and mild-performance setups Included in the Kit: (1) NGK6509 Iridium Spark Plug