Description
We offer a full selection of HKS Super Fire Racing family of spark plugs optimized for race and tuning applications, featuring reinforced ignition capabilities, durability and anti-insulation. The thermal edge of the ceramic insulator discharges to help decrease carbon deposits under long idling.
Their iridium alloy center electrode reduces voltage requirements and improves ignition performance and durability.
Heat ranges are designed to withstand high temperatures and pressures under demanding race conditions.
HKS M-RE-series features a short M14 x 12,7 thread and a plug wrench size 20,8 mm / 13/16″.
The HKS M-RE series spark plugs are almost exclusively designed for and used in:
- Mazda RX-7 (all generations, particularly FC3S and FD3S)
- Mazda RX-8
It offers three heat ranges: 45 (NGK 9), 50 (NGK 10) and 52.5 (NGK 10.5).
The chart below illustrates the respective Denso and NGK heat range indexes.
Choose the best option from the drop down menu.
