Ignition Coil and Iridium Spark Plugs for Acura RDX (2007-2012) 2.3L

Direct-Fit Ignition Coil and Iridium Spark Plug Kit for 2007-2012 Acura RDX

What it Does: The ignition coil and iridium spark plug kit replaces degraded factory ignition components on the 2007-2012 Acura RDX to eliminate misfires, restore combustion efficiency, and stabilize high-boost ignition under load.

The Stock Acura RDX Ignition Breakdown

In the turbocharged K23A1 engine, extreme under-hood thermal cycles and elevated cylinder pressures accelerate ignition wear. Over time, factory coil packs suffer from dielectric breakdown within the primary and secondary windings, while silicone boots harden and develop micro-cracks. Simultaneously, high combustion temperatures erode factory spark plug electrodes, increasing the required firing voltage. This combination causes spark blowout under boost, erratic idle, sluggish throttle response, and recurring P0300 through P0304 misfire codes.

The Engineering Solution

This comprehensive tune-up kit pairs heavy-duty coil-on-plug pencil coils with high-conductivity iridium spark plugs designed specifically for forced-induction operation. The ignition coils feature high-temperature epoxy potting and premium copper wire windings to resist heat soak and voltage leak. The iridium plugs utilize a laser-welded fine-wire center electrode for exceptional ignitability, lower required arc voltage, and superior resistance to electrical erosion. Together, they restore instantaneous flame kernel propagation, maintain clean spark delivery at full boost, and maximize fuel efficiency.

Technical Specifications

Compatibility

• 2007 Acura RDX Base / SH-AWD 2.3L Turbo
• 2008 Acura RDX Base / Technology Package 2.3L Turbo
• 2009 Acura RDX Base / Technology Package 2.3L Turbo
• 2010 Acura RDX Base / SH-AWD 2.3L Turbo
• 2011 Acura RDX Base / SH-AWD 2.3L Turbo
• 2012 Acura RDX Base / SH-AWD 2.3L Turbo

Frequently Asked Questions

Does this fit the TB1 and TB2 RDX?
Yes, this is a direct fit for the 2007-2012 Acura RDX equipped with the K23A1 2.3L turbocharged engine across both front-wheel-drive and SH-AWD configurations.

Are the iridium spark plugs pre-gapped for turbo use?
Yes, the plugs are pre-gapped to factory specification, but always verify gap tolerances with a feeler gauge prior to torquing them into the cylinder head.

The Acura Performance Caliber

Extracting consistent power from Honda's variable-flow turbocharged platform requires zero ignition drop-off. Maintaining proper spark saturation ensures your turbocharged powertrain delivers crisp spool-up, uncompromised passing power, and dependable throttle response across all operating conditions.