HKS Super Fire Racing Spark Plug

2022–2023 Subaru BRZ / Toyota GR86

50003-M45HL

Overview:

The HKS Super Fire Racing Spark Plug M45HL is engineered specifically for the 2022–2023 Subaru BRZ and Toyota GR86 models. Designed for performance enthusiasts and track drivers alike, this spark plug enhances ignition reliability and efficiency under demanding conditions. Whether you are pushing your vehicle on the circuit or seeking improved throttle response during spirited driving, the HKS Super Fire Racing Spark Plug delivers consistent, powerful sparks to optimize combustion.

With advanced materials and a design focused on durability and ignition performance, this spark plug helps maintain stable engine operation even under high boost or lean fuel mixtures. It is an ideal upgrade for drivers who demand more from their ignition system without compromising longevity.

Key Features:

The HKS Super Fire Racing Spark Plug incorporates cutting-edge technology to improve ignition performance and durability. Key features include:

• 0.6mm Iridium Alloy Center Electrode: Reduces voltage requirements for ignition, enhancing spark efficiency and extending electrode life.
• Outer Electrode with Platinum Chip: Features a square platinum chip that increases durability and, combined with the iridium center electrode, boosts ignition performance.
• Short Type Outer Electrode (Anti-Vibration): The shortened and tapered outer electrode reduces weight and resists vibration, improving longevity under harsh driving conditions.
• Thermal Edge Ceramic Insulator: Helps discharge carbon deposits that accumulate during long idling or varied combustion states, reducing misfires.
• Spark Support Gap: A specialized gap between the insulator tip and outer electrode base that facilitates discharge to prevent carbon buildup.
• Improved Durability: Designed to withstand continuous high load and aggressive tuning, making it suitable for circuit driving and performance applications.
• Enhanced Ignition Performance: Optimized for harsh conditions such as lean mixtures and high boost pressures to maintain stable combustion.

Construction & Design:

The HKS Super Fire Racing Spark Plug combines premium materials and precision engineering. The iridium alloy center electrode is exceptionally thin at 0.6mm, allowing for a more concentrated spark and reduced voltage demand. The outer electrode’s platinum chip and shortened tip design are crafted to maintain the ideal ignition gap while resisting wear and vibration. The ceramic insulator’s thermal edge design actively combats carbon buildup, ensuring consistent spark delivery over time.

This thoughtful construction results in a spark plug that not only performs reliably under extreme conditions but also extends service intervals by minimizing electrode degradation and fouling.

Installation & Fitment:

This spark plug is a direct fit replacement for the 2022–2023 Subaru BRZ and Toyota GR86 models. Installation is straightforward, using factory mounting points and requiring no modifications or special tuning. It is important to select the correct heat range and ensure proper combustion conditions to avoid damage and maximize performance.

What’s Included

• HKS Super Fire Racing Spark Plug M45HL

Ideal For:

• Performance enthusiasts seeking improved ignition reliability and efficiency
• Track and circuit drivers requiring durable spark plugs under high load
• Owners of 2022–2023 Subaru BRZ and Toyota GR86 looking to upgrade factory spark plugs
• Drivers aiming to reduce carbon deposits and misfires during varied driving conditions