HKS M-Series Super Fire Racing Spark Plug - 03-07 Infiniti G35, 03-06 Nissan 350Z
HKS S-Series Super Fire Racing Spark Plugs are highperformance Iridium plugs designed to handle advanced levels oftuning and still offer easy start-up and smooth idling.0.4mm diameter Iridium plug electrode coreU-shaped grooved electrodeS-Series Super Fire Spark Plugs are recommended for smooth coldstarting, response and acceleration.M-Series Super Fire Spark PlugsHKS M-Series spark plugs are high performanceIridium plugs designed to provide improved ignition performance,durability and anti-carbon build-up.0.6mm Iridium Alloy Center ElectrodeOuter Electrode with Platinum ChipShort Type Outer Electrode (Anti-Vibration)Thermal EdgeSpark Support Gap*M Series is recommended for reliable ignition, durability andanti-carbon buildup under high load.The Iridium alloy is used because of its durability andreliability. On an average plug, a narrow core typically shortenslife span of plug but with the intense durability of iridium thereis no sacrifice in any longevity. With a high melting point of 2454degrees C, opposed to the degrees C of white gold, theelectrode can tolerate the high levels of compression and minorknocking without any deterioration. A nickel coating on the housingalso prevents the spark plug from premature deterioration. TheIridium plugs are available for multiple applications and offeredin colder heat ranges of 7 and up and specifically for rotary,heat ranges of 9 and up are offered.
- Heat Range: NGK # 7
- Thread Size: 14mm × 26.5mm
- Wrench Size: 16mm