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The BMW M4 has long been celebrated for its performance and engineering excellence. However, for enthusiasts seeking even more power, upgrading the turbochargers is a popular modification. This article explores the transition from stock turbochargers to high-performance BorgWarner and Precision parts, enabling the M4 to achieve over 800 horsepower.
Understanding the Stock Turbochargers
The stock turbochargers in the BMW M4 are designed to provide a balance of performance and reliability. While they deliver impressive power, many drivers find themselves craving more. Understanding the limitations of the stock turbos is crucial for anyone considering an upgrade.
- Factory boost levels typically range from 10 to 15 psi.
- Power output is limited to around 425 hp in the standard model.
- Turbo lag can be noticeable under certain driving conditions.
Benefits of Upgrading Turbochargers
Upgrading to high-performance turbochargers can significantly enhance the driving experience. Here are some of the key benefits:
- Increased horsepower and torque.
- Improved throttle response and reduced turbo lag.
- Enhanced overall performance and driving dynamics.
Choosing the Right Turbochargers
When selecting turbochargers for the BMW M4, two brands stand out: BorgWarner and Precision. Both offer excellent options for those looking to push their M4 to new heights.
BorgWarner Turbochargers
BorgWarner is known for its innovative turbocharging technology. Their products are designed for high efficiency and performance. Some highlights include:
- Variable geometry technology for optimal performance across the RPM range.
- Durable construction for reliability under high boost pressures.
- Proven track record in motorsports and performance applications.
Precision Turbochargers
Precision Turbo is another leading manufacturer, offering turbochargers specifically designed for high-performance applications. Key features include:
- High-flow designs capable of supporting over 800 hp.
- Lightweight construction for reduced turbo lag.
- Customization options for specific performance needs.
Installation Considerations
Installing new turbochargers on the BMW M4 is a complex process that requires careful planning and execution. Here are some important considerations:
- Professional installation is recommended to ensure proper fitment and performance.
- Upgraded intercoolers and exhaust systems may be necessary to support increased power levels.
- ECU tuning is essential to optimize performance and reliability.
ECU Tuning for Maximum Performance
After upgrading the turbochargers, ECU tuning is crucial to unleash the full potential of the new setup. A well-tuned ECU can provide:
- Improved fuel mapping for better combustion efficiency.
- Enhanced boost control for optimal power delivery.
- Safety features to prevent engine damage from excessive boost.
Real-World Performance Gains
Upgrading to BorgWarner or Precision turbochargers can yield impressive performance gains. Many users report significant improvements in power and drivability. Here’s what to expect:
- Horsepower increases of 300+ hp over stock.
- Torque gains that enhance acceleration and responsiveness.
- Improved 0-60 times and quarter-mile performance.
Conclusion
Upgrading the BMW M4’s turbochargers to high-performance BorgWarner or Precision parts is a rewarding endeavor for enthusiasts seeking power beyond the factory limits. With careful selection, professional installation, and proper tuning, achieving over 800 horsepower is within reach, transforming the M4 into a true powerhouse on the road.