Ignition Coil & Iridium Spark Plugs for Nissan 370Z (2009-2020) 3.7L V6

High-Output Ignition Coil & Iridium Spark Plugs for 2009-2020 Nissan 370Z

What it is for: This complete ignition service kit replaces degraded factory coils and fouled plugs to restore spark energy, resolve misfires, and stabilize idle in the VQ37VHR engine.

The Stock 370Z Ignition Degradation

The factory VQ37VHR ignition system experiences significant thermal stress due to the engine's high-revving nature and tightly packed Z34 engine bay. Over multiple heat cycles, the OEM coil pack epoxy breaks down, leading to internal shorting, micro-cracking, and voltage leaks. Simultaneously, standard or aging spark plugs suffer from rapid electrode erosion. This manifests as high-RPM misfires, sluggish throttle response, unburnt fuel affecting the catalytic converters, and a fluctuating idle. Constant heat soak exacerbates these issues, causing increased resistance in the primary and secondary windings of the factory coil packs, fundamentally crippling spark delivery under load.

The Engineering Solution

This 12-piece ignition kit upgrades the combustion process by pairing high-output ignition coils with advanced iridium spark plugs. The coils utilize high-grade copper internal windings and specialized high-temperature dielectric epoxy to resist heat soak and maintain consistent voltage output under heavy mechanical loads. The included iridium spark plugs are significantly superior to standard nickel or platinum alternatives, featuring an ultra-fine center electrode that requires less voltage to jump the gap while providing a hotter, more concentrated spark front. Pre-gapped to precisely 0.8mm-0.9mm (0.031-0.035"), these plugs ensure optimal flame kernel propagation. This synergistic combination guarantees complete combustion, restoring lost horsepower, maximizing fuel efficiency, and eliminating hesitation across the entire RPM band.

Technical Specifications

Compatibility

• 2009-2020 Nissan 370Z Base 3.7L V6
• 2009-2020 Nissan 370Z Touring 3.7L V6
• 2009-2020 Nissan 370Z Sport 3.7L V6
• 2009-2020 Nissan 370Z Nismo 3.7L V6

The Nissan Caliber

For the Z-car chassis, consistent power delivery and a smooth powerband are critical. This ignition overhaul ensures your VQ37VHR pulls hard all the way to redline without hesitation, unlocking the crisp throttle response and reliability expected from a premier Japanese sports car.