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The Audi S4 is known for its impressive performance and engineering excellence. However, enthusiasts are always looking for ways to enhance their vehicles further. One such modification that has gained popularity is the installation of individual throttle bodies (ITBs). In this article, we will explore real-world dyno results demonstrating how APR’s individual throttle bodies can increase the power of the Audi S4 by 18 horsepower.
Understanding Individual Throttle Bodies
Individual throttle bodies are a performance upgrade that replaces the factory single throttle body with multiple smaller throttle bodies, one for each cylinder. This modification allows for improved airflow and throttle response, resulting in better engine performance. The APR ITB kit is designed specifically for the Audi S4, ensuring compatibility and optimal performance.
The Dyno Testing Process
To validate the performance gains from the APR individual throttle bodies, a series of dyno tests were conducted. The testing involved comparing the stock setup with the APR ITB kit installed. The following steps outline the testing process:
- Baseline dyno runs were conducted with the stock throttle body.
- The APR individual throttle body kit was installed on the vehicle.
- Post-installation dyno runs were performed to measure power gains.
- Results were analyzed to determine the effectiveness of the upgrade.
Results of the Dyno Tests
The results of the dyno tests were impressive. The Audi S4 equipped with the APR individual throttle bodies showed a significant increase in horsepower. Here are the key findings:
- Stock horsepower: 330 hp
- Horsepower with APR ITBs: 348 hp
- Increase in horsepower: 18 hp
Benefits of APR Individual Throttle Bodies
Aside from the notable horsepower increase, there are several additional benefits to installing APR individual throttle bodies on the Audi S4:
- Improved throttle response: ITBs provide a more direct airflow path, resulting in quicker engine response.
- Enhanced sound: The sound produced by the engine with ITBs is a thrilling experience for enthusiasts.
- Better tuning potential: ITBs allow for more precise tuning, enabling further performance enhancements.
Installation Considerations
While the performance gains are enticing, there are several considerations to keep in mind when installing APR individual throttle bodies:
- Professional installation recommended: Proper installation is crucial for optimal performance.
- Tuning required: After installation, the vehicle must be tuned to ensure the engine runs efficiently.
- Potential for increased maintenance: ITBs may require more frequent maintenance compared to stock setups.
Conclusion
In conclusion, the APR individual throttle bodies provide a significant power increase of 18 hp for the Audi S4, along with improved throttle response and enhanced sound. For enthusiasts looking to maximize their vehicle’s performance, this upgrade is a compelling option. However, it is essential to consider the installation and tuning requirements to fully realize the benefits of this modification.