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Fitments:
Mazda RX7 12A                              (83-85) 12AN2 1.1L - RWD Petrol
Mazda RX7 13B-Turbo                   (89-92) 13B 1.3L - RWD Petrol
Mazda RX7 13B-Turbo                   (89-92) RE13B 1.3L - RWD Petrol
Mazda RX7 13B-REW Twin Turbo (92-95) RE13B 1.3L - RWD Petrol
 
 
Important Note: All HKS Spark Plugs Are Sold Individually - Please Purchase The Amount Needed For Your Car.
 
 
RE Type
Thread Size: 14×12.7mm
Wrench Size: 20.8mm
Heat Range: NGK #10.5
 
 
Improved ignition performance, durability and anticarbon build-up. The Ultimate spark plug for increasing performance of tuned or stock engines.
 
 
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.
 
 
Features
 
0.6mm Iridium Alloy Center Electrode
Iridium Alloy Center Electrode reduces voltage requirement as well as improving ignition performance and durability.
Outer Electrode with Platinum Chip
The Outer Electrode incorporates a square platinum chip which improves urability, and when combined with the iridium center electrode boosts ignition performance.
The Outer Electrode features a shortened tip design and tapered shape while
maintaining the necessary space for proper ignition.
Short Type Outer Electrode (Anti-Vibration)
The outer electrode has been shortened and engineered with the ideal shape to decrease weight for resistance against vibration. This anti-vibration design improves longevity of the outer electrode.
Thermal Edge
After long idling or various combustion conditions carbon buildup can occur causing misfires. The Thermal Edge of the ceramic insulator will discharge to help decrease carbon deposits.
Spark Support Gap
Discharges will occur in the Spark Support Gap (space between the tip of insulator and the base of the outer electrode) to help prevent carbon buildup.
 
 
Performance and Efficiency
 
Increased Ignition Performance
Decreased voltage requirement strengthens ignition performance under harsh conditions like lean mixture or high boost pressure.
Improved Durability
New material and design improves durability, which allows for use under hard combustion conditions like continuous high load during circuit driving or aggressive tuning.
* Improper combustion condition and wrong heat range selection might cause damage to sparkspark plug.
Decreased Carbon Deposits
Thermal Edge and Spark Support Gap help prevent carbon buildup for better ignition under various combustion conditions.
 
 
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.
 
 
Whether it is engine, exhaust, suspension, or drive-train systems, there is no substitute for the performance, quality and reliability of HKS. Part-Box/Co-ordSport are an approved distributor for HKS performance and tuning products.
 
 
For over 35 years, HKS products have been put to the test in drag racing, road racing, rallying, and top speed trials. HKS equipped vehicles have captured numerous racing championships and hold claim to a myriad of competition records using many “off the shelf”, race proven HKS components. As a result, HKS has been synonymous with “performance” in the automotive aftermarket industry for the past 35+ years.