Audi S3 Apr Stage 3 Upgrade: Achieving 420 Hp and 480 Nm for $4,500

The Audi S3 is a compact luxury car that has garnered a loyal following thanks to its blend of performance, style, and technology. With the right upgrades, the S3 can transform into a powerhouse on the road. One such upgrade is the APR Stage 3 upgrade, which significantly enhances the vehicle’s performance to an impressive 420 horsepower and 480 Nm of torque, all for an attractive price of $4,500.

Understanding the APR Stage 3 Upgrade

The APR Stage 3 upgrade is designed to maximize the potential of the Audi S3’s engine. This upgrade involves several key components that work together to enhance performance, reliability, and driving enjoyment. Below are the main features of the APR Stage 3 upgrade:

  • High-Performance Turbocharger
  • Upgraded Intercooler
  • High-Flow Fuel Injectors
  • Custom ECU Tune
  • Performance Exhaust System

Key Components of the Upgrade

High-Performance Turbocharger

The heart of the APR Stage 3 upgrade is the high-performance turbocharger. This component is designed to increase airflow and boost pressure, resulting in higher power output. The new turbocharger allows the engine to breathe more efficiently, which is crucial for achieving the 420 hp mark.

Upgraded Intercooler

To support the increased airflow from the new turbocharger, the APR Stage 3 upgrade includes an upgraded intercooler. The larger intercooler helps to cool the intake air, preventing heat soak and maintaining optimal performance. Cooler air is denser, allowing for more oxygen to enter the engine, further enhancing power output.

High-Flow Fuel Injectors

With increased power comes the need for more fuel. The APR Stage 3 upgrade includes high-flow fuel injectors that ensure the engine receives the necessary fuel to match the increased air intake. This component is vital for maintaining the correct air-fuel ratio, which is essential for optimal performance and engine health.

Custom ECU Tune

The custom ECU tune is a critical aspect of the APR Stage 3 upgrade. This software modification adjusts various parameters of the engine’s performance, including boost levels, fuel delivery, and ignition timing. The ECU tune is tailored specifically for the upgraded components, ensuring that the engine operates smoothly and efficiently at the new power levels.

Performance Exhaust System

To complement the increased power and airflow, the APR Stage 3 upgrade includes a performance exhaust system. This system is designed to reduce back pressure, allowing exhaust gases to exit the engine more freely. A less restrictive exhaust system not only enhances performance but also provides a more aggressive sound, adding to the overall driving experience.

Benefits of the APR Stage 3 Upgrade

The APR Stage 3 upgrade offers numerous benefits for Audi S3 owners looking to enhance their vehicle’s performance. Here are some of the key advantages:

  • Significant Power Increase: Achieve up to 420 hp and 480 Nm of torque.
  • Improved Throttle Response: Enhanced engine responsiveness for a more engaging driving experience.
  • Better Acceleration: Faster 0-60 mph times and improved overall performance.
  • Enhanced Driving Enjoyment: A more thrilling driving experience with a sportier sound.
  • Value for Money: Competitive pricing for significant performance upgrades.

Installation Process

Installing the APR Stage 3 upgrade requires technical expertise and should ideally be performed by a professional. The installation process typically involves the following steps:

  • Removing the stock turbocharger and intercooler.
  • Installing the new high-performance turbocharger and intercooler.
  • Replacing fuel injectors with high-flow versions.
  • Uploading the custom ECU tune to the vehicle’s engine control unit.
  • Installing the performance exhaust system.

Conclusion

The APR Stage 3 upgrade for the Audi S3 is a fantastic option for those looking to unleash the full potential of their vehicle. With a power output of 420 hp and 480 Nm of torque, this upgrade transforms the S3 into a high-performance machine that is both thrilling to drive and reliable. At a cost of $4,500, the APR Stage 3 upgrade represents excellent value for money, making it a popular choice among enthusiasts.