NGK Iridium IX Spark Plugs – LFR7AIX #2309 (Set of 6)

[3d_viewer id=”6864″] Product Description: Take your Honda performance build to the next level with NGK’s LFR7AIX Iridium IX spark plugs. Built with a fine-wire 0.6 mm iridium center electrode and a tapered ground strap, these plugs provide lightning-fast ignition, smoother throttle response, and greater durability under high-boost or high-RPM conditions. Perfect for tuned engines and one-step colder setups, the LFR7AIX is trusted by enthusiasts running turbocharged K-series, B-series, and factory turbo Type R platforms. Fitment: 2017–2021 Honda Civic Si (FK8) 2022 Honda Civic Type R (FL5) 2000–2009 Honda S2000 (F20C / F22C1) Acura RSX (K20A2/K20Z1) Acura NSX (C30A / C32B) One-step colder than OEM—ideal for modified or boosted applications. Specifications: Part Number: LFR7AIX NGK Stock #: 2309 Thread Size: 14mm x 1.25 Reach: 26.5 mm (1.04″) Seat Type: Gasket Hex Size: 16 mm (5/8″) Heat Range: 7 Gap: 0.032″ (preset) Center Electrode: 0.6 mm fine-wire Iridium Ground Electrode: Nickel, tapered-cut Resistor: Yes (5k Ohm) Torque Spec (Aluminum Head): 10.8 – 14.5 lb-ft Made in Japan Sold: Set of 6 plugs