Description
We offer a full selection of HKS Super Fire Racing spark plugs for race and tuning applications. The heat ranges are designed to withstand high temperatures and pressures under demanding racing conditions.
The Super Fire Racing spark plugs are reinforced in ignition capability, 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 produces a strong spark with reduced voltage requirements, and improves ignition performance and durability.
The M-series represents a standard “JIS Type” form, with a thread of M14 x 19 and plug wrench size 16 mm / 5/8″, which is a common fitment for many Japanese as well as European engines. They are suitable for both naturally aspirated and turbocharged engines.
The HKS M-series offers three heat ranges: M35 (NGK 7), M40 (NGK 8) ja M45 (NGK 9).
The chart below illustrates equivalent Denso and NGK heat range indexes.
Choose the best option from the drop down menu.
