Ignition Coil & Iridium Spark Plugs for Toyota Supra (1996-1998) 3.0L

Direct-Replacement Ignition Coil & Iridium Spark Plugs for 1996-1998 Toyota Supra

Restores proper spark energy and combustion efficiency for the 2JZ-GTE turbocharged engine.

The Stock Supra Ignition Shortcoming

The factory coil-on-plug ignition system on the 2JZ-GTE is notoriously susceptible to heat degradation and voltage leakage over time, especially when subjected to the extreme thermal loads generated by the twin-turbocharger setup. As the OEM epoxy resin ages and becomes brittle from continuous heat cycling, the coils develop micro-cracks that allow spark energy to arc directly to the cylinder head rather than jumping the plug gap. This energy loss manifests as high-RPM misfires, erratic idling, and reduced boost response under heavy engine load. Furthermore, aging factory plugs often suffer from gap erosion, exacerbating the load on the weakening coil packs and leading to incomplete combustion.

The Engineering Solution

This ignition service kit resolves high-load misfires by combining six precision-wound coil-on-plug units with six iridium spark plugs. The replacement coils feature advanced thermal-shock resistant epoxy and high-grade copper windings, ensuring consistent resistance under severe engine bay temperatures. The included iridium spark plugs utilize an ultra-fine wire center electrode, requiring less voltage to ionize the gap while resisting electrode erosion. This combination ensures a high-intensity spark that resists blow-out under peak manifold pressure, restoring smooth power delivery, stabilizing idle characteristics, and maximizing fuel atomization for the legendary inline-six.

Technical Specifications

Compatibility

• 1996 Toyota Supra 3.0L 2JZ-GTE Turbo
• 1997 Toyota Supra 3.0L 2JZ-GTE Turbo
• 1998 Toyota Supra 3.0L 2JZ-GTE Turbo

The Toyota Tuning Caliber

Engineered for the demands of the 2JZ platform, this ignition overhaul ensures reliable spark delivery to support both factory boost levels and elevated horsepower targets with unwavering JDM reliability.