Ignition Coil & Iridium Spark Plugs for Chevrolet Impala (2006-2010) 3.5L 3.9L V6

High-Energy Ignition Coil & Iridium Spark Plugs for 2006-2010 Chevrolet Impala

Restores optimal combustion efficiency: Eliminates persistent misfires by delivering a high-voltage, stable spark to the combustion chamber of your GM High Value V6 engine.

The Stock W-Body Ignition Breakdown

Factory ignition coils on the 3.5L and 3.9L High Value V6 engines are notoriously prone to thermal degradation and primary winding resistance failures after prolonged exposure to under-hood heat cycles. Over time, the OEM coil packs and carbon-core plug wires develop micro-cracks in their epoxy housing and outer insulation. This dielectric breakdown leads to voltage leaks to the engine block, resulting in a rough idle, heavy hesitation under load, poor fuel economy, and eventual P0300-series misfire codes as the spark fails to jump the gap effectively under high cylinder pressures.

The Engineering Solution

This comprehensive ignition overhaul kit is engineered to restore and exceed factory electrical output. The upgraded ignition coil distributor utilizes enhanced internal copper windings and high-temperature epoxy potting to resist extreme heat soak and maintain a stable voltage output across the entire RPM range. Paired with premium silicone spark plug wires, the system ensures maximum EMI/RFI suppression with near-zero voltage drop. Finally, the included laser-welded iridium spark plugs feature a fine-wire center electrode. Iridium's superior hardness and high melting point (over 4,000°F) provide exceptional durability, ensuring a concentrated, potent spark that improves throttle response, stabilizes the idle, and maximizes the burn of the air/fuel mixture.

Technical Specifications

Compatibility

• 2006-2010 Chevrolet Impala 3.5L V6
• 2006-2010 Chevrolet Impala 3.9L V6

The Chevrolet Durability Standard

Built to complement the robust nature of American muscle and fleet-tested commuter platforms, this ignition system upgrade guarantees reliable starting power, stable highway cruising, and consistent performance mile after mile.