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The BMW S55 engine, known for its impressive performance, can be further enhanced through manifold and downpipe upgrades. These modifications not only increase horsepower but also improve overall engine efficiency. In this article, we will explore how these upgrades can elevate the S55’s power output from 473 to over 530 horsepower.
Understanding the S55 Engine
The S55 engine, a 3.0-liter inline-six twin-turbocharged powerplant, powers models such as the BMW M3 and M4. With a factory output of 473 horsepower, it already delivers impressive performance. However, enthusiasts often seek additional power, leading to the popularity of aftermarket upgrades.
Benefits of Upgrading the Manifold
Upgrading the intake manifold can significantly enhance airflow to the engine. This improvement leads to better combustion and, ultimately, increased power. Here are some key benefits:
- Improved airflow dynamics
- Enhanced throttle response
- Increased horsepower and torque
- Better engine efficiency
Types of Manifold Upgrades
There are various types of manifold upgrades available for the S55, each designed to optimize performance:
- Aftermarket intake manifolds
- Ported factory manifolds
- Custom fabricated options
Downpipe Upgrades: Unlocking More Power
Downpipe upgrades are another crucial component for increasing the S55’s horsepower. By reducing exhaust backpressure, these upgrades allow for a more efficient exhaust flow. Here are the main advantages:
- Reduced turbo lag
- Increased horsepower and torque
- Improved sound quality
- Enhanced engine response
Choosing the Right Downpipe
When selecting a downpipe for the S55, consider the following options:
- High-flow catted downpipes
- Catless downpipes
- OEM replacement downpipes
Combining Manifold and Downpipe Upgrades
For maximum power gains, combining both manifold and downpipe upgrades is highly recommended. This combination allows for optimal airflow into and out of the engine, resulting in significant performance improvements.
Expected Power Gains
With properly installed manifold and downpipe upgrades, the S55 can achieve power outputs exceeding 530 horsepower. Here’s a breakdown of the expected gains:
- Stock power: 473 hp
- With manifold upgrade: 500 hp
- With downpipe upgrade: 515 hp
- With both upgrades: 530+ hp
Installation Considerations
While upgrading the manifold and downpipe can be a rewarding process, it is essential to consider the installation aspects:
- Professional installation is recommended for optimal results.
- Ensure compatibility with existing engine management systems.
- Consider the impact on warranty and emissions compliance.
Conclusion
Upgrading the manifold and downpipe of the BMW S55 engine is an effective way to increase power from 473 to over 530 horsepower. By improving airflow and reducing backpressure, these modifications can significantly enhance performance. Whether you are a track enthusiast or simply looking to boost your daily driver, these upgrades are worth considering.