HKS 50003-M40HL Spark Plug 8 (HL) NISSAN GT-R R35 / SUBARU BRZ / TOYOTA GT86

HKS M-Series Super Fire Racing spark plug are high performance Iridium plug designed to handle advanced levels of tuning and provide Improved ignition performance, durability and anti-carbon build-up.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. M Series is recommended for reliable ignition, durability and anti-carbon buildup under high load. All spark plugs are sold individually.Features:

0.6mm Iridium Alloy Center Electrode
Outer Electrode with Platinum Chip
Short Type Outer Electrode (Anti-Vibration)
Thermal Edge
Prevent Carbon Build Up
Heat Range: 8