HKS 50003-M35I Spark plug 7 (ISO) for SUBARU EJ207/EJ205, TOYOTA 1JZ/2JZ, PORSCHE 996T/997.1 Turbo

HKS M-series spark plugs are made of high quality iridium alloy and are characterized by high performance, efficiency, durability, low carbon build-up and improved ignition.
The specially designed high performance design consists of:
1) 0.6mm thick center electrode, which reduces voltage requirements, as well as provides durability and improved ignition.
2) an outer electrode with a platinum chip, which contributes to a long service life and improves ignition in conjunction with the central electrode. Thanks to the shortened tip, the necessary space for proper ignition is provided;
3) a short outer electrode, which reduces weight and provides an anti-vibration function and, accordingly, increases the service life;
4) special thermal edge, which reduces the accumulation of carbon.