Ignition Coil & Iridium Spark Plugs for Lexus RC350 F Sport (2014-2023) 3.5L V6

High-Output Ignition Coils & Iridium Spark Plugs for 2014-2023 Lexus RC

This direct-replacement ignition coil and iridium spark plug kit restores primary voltage output and eliminates high-RPM misfires for the 3.5L 2GR V6 engine.

The Stock RC350 Ignition Degradation

Over time, the factory ignition coils on the 2GR-FSE and 2GR-FKS engines suffer from extreme thermal cycling due to their flush mounting against the cylinder heads. This persistent heat soak degrades the internal epoxy potting and compromises the primary and secondary copper windings. The result is parasitic voltage leakage, weakened spark blowout under heavy load, and progressive degradation of the spark plug electrodes, leading to rough idling, sluggish throttle response, and decreased combustion efficiency.

The Engineering Solution

This comprehensive ignition service kit features superior internal copper wiring and upgraded dielectric insulating materials to prevent voltage breakdown and resist thermal degradation. The redesigned coils deliver up to a 15% increase in spark energy, ensuring complete air-fuel combustion within the cylinders under high load. The matched iridium spark plugs utilize an ultra-fine center electrode, requiring lower firing voltage while providing a highly concentrated, stable spark core. This minimizes flame quenching, stabilizes the idle, and restores power delivery across the entire RPM band. The direct OE+ construction guarantees precise fitment, directly addressing factory heat-soak vulnerabilities.

Technical Specifications

Compatibility

• 2014-2023 Lexus RC350 Base 3.5L V6
• 2014-2023 Lexus RC350 F Sport 3.5L V6

The Lexus Standard

Because the RC350 relies on precise fuel delivery and variable valve timing, maintaining peak ignition smoothness is critical for restoring factory power output, preserving throttle response, and ensuring long-term JDM reliability without triggering Check Engine Lights.