NGK Iridium IX spark plugs are specifically designed for the performance enthusiast. Iridium IX provides outstanding acceleration, high fuel efficiency and durability. NGK Iridium IX plugs offer extreme ignitability and exceptional anti-fouling. Tapered cut ground electrode provides improved starting, idling and throttle response. The Iridium fine wire center electrode's durability is six times harder than platinum. Iridium alloy's extremely high melting point is perfect for today's engines. For even greater performance consider upgrading to an NGK Ruthenium HX plug.
Features and Benefits
- RECOMMENDED USAGE: Modified or high performance applications, or as an upgrade to OE nickel alloy spark plugs
Vehicle Fitment:
6.2L Hemi V8 (Hellcat Demon Redeye Supercharged)
• 2021-2023 Dodge Ram TRX (6.2)
• 2015-2023 Dodge Charger (6.2)
• 2015-2023 Dodge Challenger (6.2)
• 2018-2021 Jeep Grand Cherokee Trackhawk (6.2)
Install Notes for Stock Coil Packs:
0.029" running 11psi (stock boost)
0.027" running 15psi
0.024" running 18psi
0.022" running 20psi
0.020" running 22psi
0.018" running 24psi
Part Number: LFR7AIX
Stock Number: 2309
UPC: 087295123096
Heat Range: 7
Thread Size: 14mm
