HKS 50003-M40XL Spark Plug 8 Mitsubishi EVO X 4B11T / MERCEDES AMG 5.5 Bi-Turbo
LL PLUGS SOLD INDIVIDUALLY*HKS S-Series Super Fire Racing Spark Plugs*HKS S-Series Super Fire Racing Spark Plugs are high performance Iridium plugs designed to handle advanced levels of tuning and still offer easy start-up and smooth idling.* 0.4mm diameter Iridium plug electrode core* U-shaped grooved electrode* S-Series Super Fire Spark Plugs are recommended for smooth cold starting, response and acceleration.*M-Series Super Fire Spark Plugs*HKS M-Series spark plugs are high performance Iridium plugs designed to provide improved ignition performance, durability and anti-carbon build-up.* 0.6mm Iridium Alloy Center Electrode* Outer Electrode with Platinum Chip* Short Type Outer Electrode (Anti-Vibration)* Thermal Edge* Spark Support Gap*M Series is recommended for reliable ignition, durability and anti-carbon buildup under high load. The Iridium alloy is used because of its durability and reliability. On an average plug, a narrow core typically shortens life span of plug but with the intense durability of iridium there is no sacrifice in any longevity. With a high melting point of 2454 degrees C, opposed to the 1769 degrees C of white gold, the electrode can tolerate the high levels of compression and minor knocking without any deterioration. A nickel coating on the housing also prevents the spark plug from premature deterioration. The Iridium plugs are available for multiple applications and offered in “colder” heat ranges of 7 and up and specifically for rotary, heat ranges of 9 and up are offered.
Heat Range: NGK # 8Thread Size: 12mm × 26.5mmWrench Size: 16mm
- 1 lbs
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