HKS M-Series Super Fire Racing spark plugs are high performance Iridium plugs designed to handle advanced levels of tuning and provide Improved ignition performance, durability, and anti-carbon build-up.
M45IL are for the 3.3L turbo platforms (Stinger, G70) while M45XL are for the 2L and 1.6L turbo platforms. These plugs come pre-gapped to 0.028" from HKS which is suitable for use but we suggest closing the gap down to 0.022" for maximum performance applications.
