Vehicle Fitment
- Your Vehicle Requires 4 Spark Plugs.
Super Fire Racing Iridium Spark Plug (50003-M40i) by HKS®. HKS Plug ignites faster and efficient for the best fuel efficiency and the best performance in all situation and environment. It’s very important to provide safe and stable ignition for engine to perform at a maximum power. HKS Super Fire Racing plug is the best plug item for extreme racing driving and also works fine for the normal tuning engine.
Electrode Material: Iridium |
Thread Diameter: 0.551" |
Thread Length: 0.748" |
Heat Range: 8 |
Type: ISO |
Special Design RE-type for Rotary Engines. Rotary engines reciprocating design have a different mechanism and combustion condition. RE-type spark plugs are specially designed to meet the different requirement for rotary engines. The straight shape platinum outer electrode enables reliable ignition performance.
HKS® is one of leading manufacturers of performance automotive parts. It offers a comprehensive line of superior quality coilovers, downpipes, transmissions, drop-in filters, pistons, superchargers, and more. The purpose of the company's foundation was to manufacture performance engine components and turbo kits which surpass OE parts. HKS pioneered the Japanese aftermarket performance industry by offering the first commercially available electronic turbo timer and boost controller.