Ignition Coil & Iridium Spark Plugs for Lexus RX350 RX450h (2007-2015) 3.5L V6

High-Output Ignition Coil & Iridium Spark Plugs for 2007-2015 Lexus RX (2GR-FE / AL10)

What it Does: Upgrades the factory ignition system with high-voltage coils and iridium-tipped plugs to restore lost horsepower, stabilize idle, and optimize fuel atomization for maximum combustion efficiency.

The Stock RX Ignition Weakness

The factory Toyota 2GR-FE and 2GR-FXE ignition coils degrade over time due to extreme thermal cycling and heat soak inherently present in the tightly packed transverse V6 engine bay. Over 80,000 miles, the internal epoxy potting begins to break down, increasing electrical resistance. Coupled with worn OEM spark plugs where the electrode gap expands, this degradation leads to weak spark propagation. The result is unburnt fuel, rough idling, hesitation under heavy load, and misfire codes (P0300-P0306), ultimately robbing the engine of its factory output and reducing fuel economy.

The Engineering Solution

This complete 6-cylinder ignition overhaul corrects these misfire issues using advanced winding technology and specialized insulation. The replacement ignition coils feature heavy-duty copper wire wrapped in a high-dielectric epoxy, effectively resisting engine-bay heat soak and preventing voltage leaks. Paired with ultra-fine wire iridium spark plugs, this kit requires less voltage to generate a spark while delivering a significantly hotter, more stable plasma core. Iridium’s extremely high melting point ensures the precise gap is maintained for tens of thousands of miles. This synergy between high-output coils and low-resistance iridium plugs yields a complete fuel burn, restoring factory horsepower, maximizing low-end torque, and smoothing out erratic idle patterns.

Technical Specifications

Compatibility

• 2007-2015 Lexus RX350 3.5L V6
• 2010-2015 Lexus RX450h 3.5L V6

The Lexus Reliability Standard

Maintaining the legendary reliability of a Toyota/Lexus V6 requires precision electrical components. This ignition upgrade ensures factory-level dependability with modern efficiency, maximizing your power curve and keeping your RX running smoothly for miles to come without throwing nuisance Check Engine Lights.