Vehicle Compatibility
The Rayten ignition kit fits several popular Nissan and Infiniti models equipped with the VQ35 engine.
Infiniti FX35
- 2003–2008 Infiniti FX35
Infiniti G35
- 2003–2008 Infiniti G35
Infiniti M35
- 2006–2009 Infiniti M35
Nissan 350Z
- 2003–2006 Nissan 350Z
Always verify compatibility using your VIN or OEM part number before purchasing.
What’s Included?
The complete ignition service kit includes:
- 6 direct-fit ignition coils
- 6 premium iridium spark plugs
Replacing all six cylinders at the same time helps maintain balanced ignition performance across the engine.
Key Features
OEM-Style Ignition Coils
Each ignition coil is designed to meet or exceed original equipment specifications for fit, performance, and durability.
Benefits include:
- Direct replacement design
- OEM-style electrical connectors
- Factory-style fitment
- Plug-and-play installation
No modifications are required during installation.
Premium Iridium Spark Plugs
The included iridium spark plugs are designed for long service life and consistent ignition performance.
Advantages include:
- Longer lifespan than traditional copper plugs
- Stable spark under load
- Improved combustion efficiency
- Reduced maintenance intervals
Iridium electrodes resist wear, making them an excellent choice for daily-driven performance vehicles.
High-Energy Spark Output
Rayten designs its ignition coils to deliver strong, consistent voltage for reliable combustion.
Improved spark energy helps support:
- Faster engine starting
- Smooth idle
- Better acceleration
- Consistent power delivery
Healthy ignition coils also reduce stress on the engine’s ignition system.
High-Temperature Construction
The ignition coil boots use heat-resistant materials designed to withstand demanding underhood temperatures.
This construction helps resist:
- Heat stress
- Corrosion
- Moisture
- Premature insulation breakdown
Long-term durability is especially important in tightly packaged VQ engine bays.
RF Interference Protection
Integrated radio frequency interference suppression helps reduce unwanted electrical noise that could interfere with sensitive engine electronics.
This supports:
- Stable ignition performance
- Reliable ECU communication
- Consistent sensor operation
Common Symptoms of Failing Ignition Coils
As ignition coils age, they may produce intermittent or weak spark.
Common warning signs include:
- Engine misfires
- Check Engine Light
- Rough idle
- Loss of power
- Poor fuel economy
- Hard starting
- Hesitation under acceleration
- Engine stalling
Replacing all ignition coils at once helps eliminate inconsistent performance caused by individual coil failures.
Installation
This kit is designed as a direct replacement for factory components.
For best results:
- Disconnect the battery.
- Remove engine covers if necessary.
- Replace one ignition coil and spark plug at a time.
- Torque spark plugs to factory specifications.
- Reconnect electrical connectors securely.
No special modifications or tuning are required.
Why This Kit Is a Smart Maintenance Upgrade
Replacing ignition coils and spark plugs together provides several benefits:
- Saves labor compared to separate repairs
- Restores balanced ignition performance
- Reduces future maintenance
- Helps maximize engine efficiency
- Improves long-term reliability
For VQ35 owners approaching higher mileage, a complete ignition refresh is often worthwhile preventive maintenance.
Final Verdict
The Rayten Ignition Coil & Iridium Spark Plug Kit provides an affordable, all-in-one ignition solution for Nissan 350Z and Infiniti VQ35-powered vehicles. By combining six OEM-style ignition coils with six long-lasting iridium spark plugs, the kit helps restore smooth engine operation, improve throttle response, and reduce common ignition-related issues such as misfires and rough idle.
Whether you’re maintaining a daily driver or refreshing a performance-oriented VQ35 engine, this complete kit offers solid value, straightforward installation, and dependable OEM-style performance.
Frequently Asked Questions
Should ignition coils and spark plugs be replaced together?
Yes. Since both components work together to produce spark, replacing them at the same time helps restore the entire ignition system and reduces the chance of future failures.
Can bad ignition coils cause engine misfires?
Absolutely. Weak or failing ignition coils often cause cylinder misfires, hesitation, rough idle, and reduced engine performance.
How long do iridium spark plugs last?
Most iridium spark plugs are designed to last 80,000 to 100,000 miles, depending on driving conditions and manufacturer recommendations.
Is this a direct-fit replacement?
Yes. The Rayten ignition coils and spark plugs are engineered as direct replacements for compatible Nissan and Infiniti applications.
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