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Best Spark Plugs for Infiniti G35 Reviews 2023 | Top 5 Picks

Best Spark Plugs For Infiniti G35

Are you aware that spark plugs are the sustenance for conventional gas engines? Also, 8 out of 10 people are upgrading their cars with them for maximum vehicle performance.

 Spark plugs are reliable and efficient to go unnoticed, especially in saving you time on maintenance and the long periods at the garage.

Best Spark Plugs For Infiniti G35

Besides, your car will not function properly if one of the spark plugs stops working.

Let’s take a look at the g35 performance spark plugs for your Infiniti G35. It will ease your search for one among many varieties available in the market.

Our Recommended Top 5 Best spark plugs for infiniti g35 in 2022

Infiniti G35 High Performance Spark Plugs

1. Double Iridium Spark Plug g35 spark plugs by Bosch Automotive

Bosch Automotive 9609 Double Iridium Spark Plug

The Bosch Automotive spark plug signifies the finest of OE spark plug technology. It is engineered for long life and delivers high performance. No doubt, Bosch are the perfect spark plugs for Infiniti g35 2003.

The Iridium center electrode and ground electrode help with the distance while delivering optimum performance from the laser-welded tapered ground and ultra-fine wire design.

 Besides, you’ll have excellent performance and ignitability from the 0.6mm firing pin.

Additionally, the 360-degree continuous welding construction is a further advantage for longevity and is resistant to corrosion from the shell plated with nickel.

It is four times more durable compared to the standard copper plug typical life. 



Bosch double iridium center electrode material makes it efficient and durable. It lasts four times longer than copper spark plugs from the ground electrode pin. Additionally, the firing pin from double iridium also makes it durable.

Good performance

A ground electrode pin and a double Iridium firing pin enhance excellent performance. Also, you can upgrade your spark plug and give it a satisfying roar. Try it out for the best engine performance.

Steadfast and saves on fuel

Double-Iridium center electrodes save on the fuel economy. However, it makes it commonly preferred among the best spark plugs. You can also count on it for perfect steadfastness.


  • It has a firing pin that is resistant to corrosion
  • Easy to install
  • The manufacturer guarantees you seven years of performance since they are among the best spark plugs
  • Prevent flashover from the ribbed-insulator design


  •  Bosch double iridium spark plug is expensive

2. NGK Laser Platinum Spark Plugs

6 pc NGK Laser Platinum Spark Plugs compatible with Infiniti G35

You’ll never worry about running out in case of any emergency since this spark plug is available in a set of four-pack. It has a longer service life from its platinum design compared to the spark plugs with conventional nickel.

NGK Laser spark plug offers lower emissions, improved fuel efficiency, superior anti-fouling, and stable idling.

 Plus, it provides reliable starts that prevent overheating by combining a 98% pure copper core and high-grade pure alumina ceramic. However, ensure you consult the manufacturer before installing or consult your vehicle’s owner’s manual.



NGK Laser spark plugs have an ignition that’s improved in addition to an efficient spark. Therefore, it delivers a unique spark for more substantial, faster, and more powerful combustion over the spark plug’s life. You will have spark efficiency and greater ignitability that minimizes spark gap growth from the corrosion-resistant and ground electrodes. 


NGK has partnered with auto manufacturers to engineer automotive parts to deliver high-quality spark plugs and oxygen sensors to the automotive community. The pieces are reliable enough to fit the current and future vehicles as well. They are sure of their quality, performance, and innovation.

Best design

NGK Laser Platinum spark plug is an excellent design fit for the best performance. They outdo any other competition of spark plugs and oxygen sensors undoubtedly. Besides, they enhance your engine to run faster from better fuel economy, reduced emission, and better performance.


They are durable enough to ensure long-lasting sparking capabilities through the durable shell. Please be sure that they help in preventing corrosion. Moreover, you can enhance fewer misfires from the sharper spark focus through the center and ground electrodes with an NGK Laser spark plug. 


  • Utilizes a lower amount of voltage, which makes them last longer
  • Reduces the amount of voltage required to produce a spark and ignite the fuel from the platinum electrodes
  • NGK Platinum Laser spark plug is durable
  • Efficient from the high level of combustion


  • A bit pricey since it is available in a pack of six

3. NGK G-Power Platinum Spark Plug

NGK 5018 G-Power Platinum Spark Plugs

The NGK G-Power Platinum spark plug lowers emissions while at the same time increases horsepower.

 Besides, it has an added advantage of the affordability and is ideal for exchanging all the spark plugs in your car since it comes in six-packs.

But you will, unfortunately, spend more than necessary in case you get a faulty one. Nonetheless, this spark plug will fit your car if only you ensure you get a quick look-up before making the purchase. 



NGK G-power spark plug is reliable in terms of the economic cost. Besides, you can count on anti-fouling and improved ignitability for more reliable performance. It is a great spark plug to upgrade your vehicle reliably.

Easy to install

NGK G-Power spark plug is straightforward to install. That is due to its Original Equipment Manufacture design. Plus, it is the perfect solution for your misfiring problems. 


It provides fuel efficiency and excellent performance from the fine wire platinum center electrode. You will have a resourceful plug for the best performance, offering fewer voltage requirements and quicker starts for efficient firing options.


  • You will get them in diverse sizes
  • Reduces emissions and improves the fuel economy
  • The NGK G-Power spark plug maximizes performance and durability from the six-pack construction style
  • Include steel and platinum as the composite combination of materials in the spark plug


  • The better fuel mileage and low emissions make it more expensive than other platinum spark plugs

4. NGK LFR5AIX-11 Iridium IX Spark Plug

NGK (4469) LFR5AIX-11 Iridium IX Spark Plug

The NGK-LFR5AIX-11 spark plug is from corrosion and abrasion-resistant, durably constructed material. It offers superior anti-fouling capacity, improved throttle response, and extreme ignitability from its perfect design.

 You can install it quickly and ensure longevity and high durability from the fine Iridium tip. Moreover, it delivers more and possibly lasts longer as the perfect choice for buttery smooth idling in addition to better performance.

Even though you’ll pay more for it, it breathes new life to your car by delivering more horsepower and lasting longer.



Iridium spark plug offers super anti-fouling, improved throttle response, and extreme ignitability. However, it is perfect for a lively performance. 


Ensures high durability from the 0.6mm laser welded fine Iridium tip and reduced electrical quenching from the tapered ground electrode. Don’t forget that it also has a consistently stable spark.


The spark plug eliminates combustion gas leakage from a triple gasket seal and prevents flashover from the corrugated ribs on the insulator. It is reliable since it prevents fouling from the longer insulator nose.


  • Installing the spark plus is easy
  • Manufacture is from double iridium for the ground electrodes
  • Performs its task from low voltage through the intricate wiring
  • Ribbed insulation grooves cause insulation of the chambers from the spark plug’s design
  • Delivers better fuel efficiency and improves current conductivity


  • Be sure about the size before purchasing for exact compatibility when spending too much on it because they can be pre-gapped inaccurately

5. Bapmic 22401-5M015 Laser Platinum Spark Plug For Infiniti G35

Bapmic 22401-5M015 Laser Platinu Spark Plug

Platinum laser spark plug enhances good performance for your infinity G35. It is made from a perfect design to bring out the best upgrade. Would you mind reading through to discover the features, pros, and cons in detail?


Enhances performance

The metal plating is anti-corrosive and cannot easily rust. It enhances performance for an extensive period. Besides, it is the best spark plug for excellent heat conduction.

Perfect design

You can efficiently prevent leakage from the triple seal’s design. Moreover, it has cast iron and torque specs for utmost durability. It is best for Infiniti car designs.

Simple installation

You can install the spark plug within a short period since it involves a straightforward, simple installation that you can do by yourself. This spark plug also enhances quick starts after installation and improves ignitability.


  • Durable 
  • Can handle too much heat 
  • They are affordable
  • Simple installation


  • May not serve you extensively

Comparison Table: Best Replacement Spark Plugs For Infiniti G35



Exterior Design



Bosch Automotive 9609 Double Iridium Spark Plug

2003-2007 Infiniti G35


One pack double iridium

Corrosion-resistant Increased durability Optimum performance

NGK Laser Platinum Spark Plugs

Infiniti G35 2003-2007 3.5L V6

Platinum metal or ceramic

Six pack

Reduces misfires Spark efficient Impeccable design

NGK G-Power Platinum Spark Plug

Infiniti G35 2003-2007 3.5L V6

Platinum core material and metal top material

Six pack

Easy to install Efficient Reliable

NGK-LFR5AIX-11 Iridium IX Spark Plug

Infiniti G35 2003-2007 3.5L V6


One pack

Reliable  Efficient Durable

Bapmic 22401-5M015 Laser Platinum Spark Plug

Infiniti G35 2007-2003 3.5L

Cast iron

Six pack

Simple installation Highly reliable Enhances performance


What can cause a false knock sensor code?

What are the symptoms of bad spark plugs?

What causes spark plug tip to break?

How to tell if a spark plug is bad by looking at it?

Infiniti G35 Spark Plugs Installation


Is it expensive to replace spark plugs?

You will pay less than $10 apiece to replace a spark plug. However, it is legitimately inexpensive as it costs a range of $16-$100. Besides, it’ll still be affordable, although you may need to replace some at a go. You’ll pay an additional cost of between $40 and $150 for the labor charge. Don’t worry; it is a straightforward repair that’ll only take a little over an hour in any garage.

How much are spark plugs for Infiniti G35?

Infiniti G35 spark plugs costs are variable depending on your current locality. You will pay $420 for replacement, $121 for parts, and an additional $258 for the positions. In the long run, you will have perfectly low emissions, economized fuel in addition to a better power mix for good car performance.

What spark plugs does Infiniti G35 have?

Platinum spark plugs are the present plugs for Infiniti G35. They have a gap of 0.4mm or 1.1mm as well. So ensure you confirm before purchasing since most platinum and iridium spark plugs come from the manufacturer with openings. Alternatively, you can always upgrade to iridium if you enhance your car for further improvements.

What spark plugs have the best performance?

You can improve your car and change the interval to 100k miles by upgrading to an Iridium Spark or Double Platinum spark plug. It will save you over time on maintenance costs and extend the interval of changing your spark plug just by spending a little more upfront. They will extend the life of your car as scheduled maintenance for every vehicle. 

What spark plugs give more horsepower?

The Double Platinum and Iridium Spark Plug have more horsepower that is perfect for your car. Iridium spark plugs have more coil dwell time since they take less firing voltage for enhanced incineration. They, in turn, lead to more horsepower, better fuel economy, and lower emissions. Also, you’ll eliminate the fouling risk from instant starts in cold weather.

How often should you change your spark plugs?

Most manufacturers recommend that you change your spark plugs every 30,000 miles. Conversely, it depends on the model and makes of your car after checking information specific to your make on the manufacturer’s website or your buying manual. Would you mind not ignoring replacing your spark plugs because you’ll be risking your car’s performance starting from the engine?


You can probably choose the correct spark plug for your car after consulting the specifications of Infiniti G35 with your manufacturer.

It will help in getting not just spark plugs but the best spark plugs for utmost performance.

Please be sure that if you go for the cheap spark plugs to cut on some costs, it will be inconvenient since they wear out fast to get you back to the shops.

Plus, be careful about replacing them yourself because you’ll affect the car’s performance or ability to start if you don’t understand what you’re doing. Go ahead and give your vehicle that faultless upgrade!

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