How to Boost Your G37’s Horsepower to 400: A Step-by-Step Guide

The Infiniti G37 is a renowned luxury sports sedan that delivers a thrilling driving experience. However, if you're seeking an extra boost of power and performance, elevating it’s horsepower to a remarkable 400 is a worthwhile pursuit. While achieving such a feat may seem daunting, it’s undoubtedly attainable with the right modifications and enhancements. By carefully selecting a combination of upgrades, such as engine modifications, improved airflow systems, exhaust enhancements, and ECU tuning, you can unlock the full potential of your G37's engine to reach an exhilarating 400 horsepower. This comprehensive guide will explore the various steps and considerations necessary to transform your G37 into a true powerhouse, allowing you to unleash it’s full potential on the open road.

Can You Tune a G37?

When it comes to tuning a G37, enthusiasts have found it to be a rewarding and exciting project car. However, it’s crucial to select the right modifications, as making the wrong choices can result in wastage of both time and money. By understanding the G37s potential and focusing on specific areas, you can unleash it’s true performance capabilities.

One popular modification for the G37 is upgrading the intake system. By replacing the factory airbox with a more efficient aftermarket intake, you can increase airflow and improve engine responsiveness. Additionally, a high-flow air filter can further enhance performance by maximizing air intake and optimizing fuel combustion.

Furthermore, a G37 can benefit from a tuning device, such as a piggyback ECU (Engine Control Unit) or a custom tune. These devices allow for precise control of the engines parameters, optimizing air-fuel ratios and ignition timing. By fine-tuning these settings, you can unlock additional horsepower and torque.

Suspension upgrades are also worth considering when tuning a G3Lowering springs or coilover kits can enhance both the handling and aesthetics of the car. Upgraded sway bars can minimize body roll during cornering, providing a more confident driving experience.

It’s also important to keep in mind that maintaining the G37s reliability is crucial during the tuning process. Consider upgrading components such as the intercooler, oil cooler, or transmission cooler to ensure proper cooling and prevent potential overheating issues.

Finally, aesthetic modifications, such as aftermarket wheels, body kits, and interior enhancements, can personalize your G37 and make it stand out from the crowd. However, it’s essential to strike a balance between performance and appearance modifications to avoid sacrificing functionality and practicality.

Exhaust System Upgrades: Upgrading the Exhaust System Can Improve Both the Performance and Sound of the G3Installing a High-Performance Exhaust System, Such as a Cat-Back or Axle-Back System, Can Increase Horsepower and Torque While Giving the Car a More Aggressive and Sporty Exhaust Note.

When it comes to improving the performance and sound of your G3 car, one popular option is upgrading the exhaust system. By installing a high-performance exhaust system like a cat-back or axle-back system, you can enhance both the horsepower and torque of your vehicle. Additionally, this upgrade will give your car a more noticeable and sporty exhaust sound.

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The Infiniti G37 lineup offers a range of power options, with each body style boasting a slightly different horsepower output. The sedan delivers 328 horsepower, while the coupe offers 330 horsepower. The convertible model achieves 325 horsepower, and for those seeking maximum performance, the IPL variant cranks up the power to a thrilling 348 horsepower. Explore the G37’s diverse range of horsepower options to find the perfect fit for your driving style.

What G37 Has the Most Horsepower?

The G37, a popular luxury vehicle from Infiniti, offers different body styles with varying power outputs. All G37 models are equipped with a 3.7-liter V6 engine, providing a remarkable driving experience. However, each body style has it’s own unique power output.

If you prefer a sportier option, the G37 coupe might be your ideal choice. With it’s more aggressive design and enhanced performance, the coupe offers a slightly higher power output of 330 horsepower. This increase in power brings a heightened level of excitement and responsiveness on the road.

For those who enjoy the exhilaration of open-air driving, the G37 convertible provides a satisfying experience. With it’s retractable hardtop and 325 horsepower, this convertible combines the joy of top-down motoring with the exhilaration of V6 power. It offers a luxurious and sporty ride, perfect for enjoying scenic drives or cruising through city streets.

Finally, the G37 offers a high-performance variant known as the IPL (Infiniti Performance Line). The IPL G37 features a boosted power output of 348 horsepower, making it the most powerful G37 model. Designed with performance in mind, the IPL G37 delivers an enhanced driving experience with precision handling and increased power under the hood.

Source: 2012 Infiniti G37 Performance, HP & Engine Options | U.S. News

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The AAM G37 Turbo Kit is a highly sought-after upgrade for G37 owners looking to boost their horsepower. With each turbo adding an impressive 500HP, this kit delivers a significant power increase while maintaining an OEM-style fitment. Renowned for it’s reliability and impressive build quality, it’s no wonder that this kit continues to be widely praised and popular among enthusiasts.

How Much HP Does a Turbo Add to a G37?

The AAM G37 Turbo Kit is a highly sought-after addition for car enthusiasts looking to give their G37 a significant boost in horsepower. This turbo kit is designed to provide an impressive power output of up to 500HP per turbo, making it a game-changer on the road. The OEM-style fitment ensures that the turbo kit seamlessly integrates with the G37, as if it were a factory-installed component.

When it comes to horsepower capacity, the VQ37VHR engine has proven to be quite robust. While the exact limit can vary depending on various factors such as modifications and supporting components, this V6 powertrain commonly handles up to 500 to 600 horsepower without experiencing major issues. With it’s strong foundation and reliable design, the VQ37VHR engine has become a popular choice among car enthusiasts seeking to extract more performance from their vehicles.

How Much HP Can a VQ37VHR Handle?

The VQ37VHR engine, commonly found in Nissan and Infiniti vehicles, has shown remarkable durability and power capabilities. While official data may vary, many enthusiasts and tuners have pushed the VQ37VHR to impressive horsepower levels.

One crucial factor in determining how much horsepower the VQ37VHR can handle lies in the strength and integrity of it’s internal components. Upgraded forged pistons, connecting rods, and a reinforced crankshaft can greatly enhance the engines overall strength, allowing it to withstand higher power levels. Additionally, aftermarket intake and exhaust systems, along with upgraded fuel injectors and a high-flow fuel pump, will ensure proper fuel delivery and optimize performance at higher horsepower levels.

Proper engine management and tuning are also crucial in maximizing the VQ37VHRs potential. A professional tuner can fine-tune the engines fuel and ignition maps, ensuring the right air-fuel ratio and ignition timing for increased power without compromising reliability. It’s important to note that modifications and tuning should be done in a controlled manner, gradually increasing power levels while monitoring factors such as air/fuel ratios, engine coolant temperatures, and oil temperatures to avoid any potential damage.

Upgraded transmission components such as clutches, torques converters, and differential upgrades may become necessary to handle the increased power and torque demands. Additionally, strengthening the drivetrain with aftermarket driveshafts, axles, and limited-slip differentials can assist in putting down the increased power to the wheels effectively.

While it can handle significant power increases, it’s crucial to strike a balance between performance and reliability, ensuring longevity and the ability to enjoy the increased power for years to come.

Performance Modifications and Aftermarket Parts for the VQ37VHR Engine

  • Performance air intake systems
  • High-flow exhaust systems
  • Tuning software and engine management systems
  • Upgraded fuel injectors
  • Aftermarket ignition coils
  • Lightweight and performance-enhancing flywheels
  • Forged pistons and connecting rods
  • Upgraded camshafts and valve springs
  • Turbocharger or supercharger kits
  • Performance exhaust headers

The G37x, known for it’s powerful performance, boasts a V6 engine that packs quite a punch. With 328 horsepower and 269 pound-feet of torque, this sedan offers an exhilarating driving experience. But there’s more to learn about the G37x and it’s impressive features.

How Much HP Does a G37x Make?

The Infiniti G37x, a popular luxury sedan, packs quite a punch under it’s hood. Powered by a robust V6 engine, this vehicle produces an impressive amount of horsepower. Specifically, the G37x generates an exhilarating 328 horsepower, making it a formidable force on the road. It’s engine is equipped with advanced technologies that optimize performance and efficiency, ensuring a thrilling driving experience.

With 269 pound-feet of torque, this sedan delivers exceptional acceleration and responsive handling.

The G37xs strong performance is complemented by it’s advanced all-wheel drive system. This system ensures optimal traction and stability, especially in challenging road conditions. With all four wheels working in harmony, the G37x maintains it’s grip on the road, providing a confident and secure driving experience.

Comparison of the G37x’s Horsepower to Other Luxury Sedans in It’s Class

  • The G37x has a horsepower comparable to other luxury sedans in it’s class.
  • It’s designed to deliver a strong and smooth performance on the road.
  • With it’s powerful engine, the G37x stands out among it’s competitors.
  • It offers a balanced combination of power and comfort.
  • The G37x’s horsepower puts it on par with other high-end sedans.
  • It provides a thrilling driving experience while maintaining it’s luxurious appeal.
  • Compared to it’s rivals, the G37x’s horsepower is impressive.
  • It demonstrates the brand’s commitment to performance and innovation.
  • With it’s competitive horsepower, the G37x is a top contender in it’s class.
  • It’s engine ensures that the G37x can keep up with any driving situation.

It’s no secret that tuning a car can be an expensive endeavor. When it comes to the Infiniti G37, many car enthusiasts are curious about the cost of a engine tune-up. On average, the cost for an Infiniti G37 Engine Tune-Up is around $377. However, it’s important to note that this price can vary depending on various factors such as the extent of the tune-up and the location of the service provider. Now let’s take a closer look at what goes into the process and why it can be worth the investment.

How Much Does It Cost to Tune a G37?

When it comes to the cost of tuning a G37, the average price stands at around $377 for an engine tune-up. However, it’s important to note that this figure may vary depending on several factors such as the location of the service center, the complexity of the tuning required, and the parts and equipment used during the process.

A G37 engine tune-up typically involves various tasks aimed at optimizing the engines performance. This may include inspecting and replacing spark plugs, ignition coils, fuel filters, and air filters. Additionally, the tuning process may also involve adjusting engine timing and fuel mixture to ensure optimal power output and fuel efficiency.

In some cases, owners may choose to upgrade their G37s engine components, such as installing a cold air intake, aftermarket exhaust system, or performance chips. These upgrades can enhance the cars overall performance but may also add to the cost of the tune-up.

The cost of tuning a G37 can also be influenced by the expertise and reputation of the service provider. Experienced and reputable mechanics or performance shops may charge a higher fee for their services due to their level of expertise and the quality of their work.


It involves a holistic approach that combines engine upgrades, enhanced breathing, fuel delivery improvements, and drivetrain enhancements. Utilizing aftermarket parts, such as performance intake systems, exhaust systems, headers, and ECU tuning, can significantly contribute to boosting horsepower. Additionally, considering forced induction options like supercharging or turbocharging can provide substantial power gains. However, it’s crucial to remember that increasing horsepower should always be accompanied by appropriate supporting modifications to preserve the overall reliability and performance of the vehicle. Moreover, regular maintenance, thorough tuning, and cautious driving practices must be observed to ensure the longevity and optimal performance of the G37.

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