Ignition Coil & Iridium Spark Plugs for Honda S2000 (2004-2005) 2.2L

Direct-Replacement Ignition Coil & Iridium Spark Plugs for 2004-2005 Honda S2000

Restores optimal combustion efficiency and eliminates high-RPM misfires by replacing degraded factory ignition components.

The Stock S2000 Ignition Weakness

The F22C1 engine in the AP2 chassis is an extremely high-revving powerhouse, pushing ignition components to their absolute thermal and electrical limits. Over time, the factory coil packs suffer from severe heat soak due to their placement directly atop the cylinder head. This constant thermal cycling breaks down the internal epoxy and copper windings, leading to increased electrical resistance, voltage leaks, and weakened spark output. Simultaneously, the OEM spark plug electrodes wear down, widening the gap and forcing the failing coils to work even harder. In the S2000, this manifests as high-RPM hesitation, erratic idle, reduced throttle response, and cylinder misfires that can trigger persistent check engine lights and unburnt fuel conditions.

The Engineering Solution

This comprehensive ignition overhaul kit directly addresses the F22C1's spark degradation by pairing precision-wound ignition coils with advanced iridium-tipped spark plugs. The upgraded coils feature premium dielectric epoxy and heavy-duty copper wire windings, significantly improving thermal resistance against the S2000's notorious under-hood temperatures. This ensures a consistent, high-voltage output across the entire powerband, from idle all the way to the 8,000-plus RPM redline. The included iridium spark plugs utilize an ultra-fine wire center electrode, which dramatically lowers the voltage requirement needed to bridge the spark gap. The high melting point of iridium prevents gap expansion over time, ensuring a focused, powerful spark flame kernel. Together, these components stabilize the idle, restore lost horsepower, maximize fuel atomization, and eliminate high-load hesitation.

Technical Specifications

Compatibility

• 2004 Honda S2000 2.2L
• 2005 Honda S2000 2.2L

The Honda Caliber

Engineered for the demands of high-revving VTEC platforms, this ignition package delivers the precise spark timing and reliable power required to maximize throttle response and maintain track-day longevity.