Ignition Coil and Iridium Spark Plugs for Lotus Exige (2005-2011) 1.8L

Direct-Fit High-Performance Ignition Service Kit for 2005-2011 Lotus Exige

What it Does: Replaces degraded factory coils and fouled plugs to eliminate high-RPM spark blowout, restore throttle response, and ensure stable combustion across the entire rev range.

The Stock Exige Ignition Breakdown

The high-revving Toyota 2ZZ-GE powertrain in the Lotus Exige operates with an 8,500 RPM redline inside a confined mid-engine bay prone to extreme heat soak. Over time, thermal cycling degrades the factory coil packs' internal epoxy and primary windings, leading to micro-arcing, intermittent misfires, and hesitation during VVTL-i high-cam engagement. Simultaneously, worn standard spark plug electrodes increase resistance, demanding higher secondary voltage that overworked OEM coils cannot sustain under boost or high cylinder pressures.

The Engineering Solution

This complete ignition kit features four heavy-duty coil-on-plug assemblies engineered with high-conductivity copper windings and reinforced dielectric housings that resist thermal breakdown. Paired with fine-wire iridium spark plugs, this setup delivers a concentrated, high-energy spark kernel with reduced voltage demand. The fine-wire iridium center electrode prevents fouling and spark quenching, ensuring crisp throttle response, stable idle, and reliable high-RPM combustion under aggressive track and street conditions.

Technical Specifications

Compatibility

• 2005–2011 Lotus Exige Base 1.8L 2ZZ-GE
• 2006–2011 Lotus Exige S 1.8L Supercharged 2ZZ-GE
• 2008–2011 Lotus Exige S240 / S260 1.8L Supercharged 2ZZ-GE

The Lotus Track Caliber

Built for the demanding thermal and RPM limits of lightweight mid-engine platforms, this kit delivers OEM-grade fitment, eliminates check engine lights, and maintains track-level ignition reliability.