NGK Ruthenium HX Spark Plugs

NGK Ruthenium HX Spark Plugs for Civic Si, Type R, Integra, and Accord 2.0T

Upgrade your ignition system with NGK Ruthenium HX Spark Plugs—engineered for performance, efficiency, and long-lasting reliability. These spark plugs are a perfect fit for modern turbocharged engines, including the 2016–2021 Honda Civic Si and Type R, 2022+ Honda Civic Si and Type R, 2023+ Acura Integra A-Spec and Type S, and the 2018+ Honda Accord 2.0T. NGK Ruthenium HX plugs are designed to deliver exceptional ignitability in today’s high-efficiency engines, with a 0.4mm Ruthenium fine wire center electrode and a 0.8mm platinum ground electrode that allow for consistent combustion even in extreme lean or rich conditions.

The unique Projected Square Platinum Electrode (PSPE) design focuses spark energy where it's needed most, helping you unlock smoother acceleration, better throttle response, and improved fuel economy. These spark plugs also offer excellent anti-corrosion and anti-seizing properties thanks to their trivalent metal plating. A high-strength alumina silicate ceramic insulator improves heat dissipation and durability, while the copper core ensures optimal heat transfer to reduce pre-ignition risk.

With a 12mm thread diameter, solid terminal, extended projection, and 5k Ohm resistor, NGK’s Ruthenium HX plugs are ready to handle the demands of high-compression, turbocharged engines found in late-model Hondas and Acuras. Whether you're daily driving, hitting the track, or tuning for more power, these spark plugs provide consistent performance up to 120,000 miles.

Key Features:

• Designed for modern turbocharged engines with high ignitability requirements
• Compatible with Civic Si, Type R, Integra A-Spec, Integra Type S, and Accord 2.0T
• 0.4mm Ruthenium fine wire center electrode and 0.8mm platinum ground electrode
• Rated for up to 120,000 miles with superior anti-corrosion and heat resistance