Bmw 335i Stage 2 Turbo Upgrade: Installation Guide and Performance Benefits

The BMW 335i is a well-regarded model known for its performance and luxury. Upgrading to a Stage 2 turbo can significantly enhance its power and efficiency. In this guide, we will cover the installation process and the performance benefits that come with this upgrade.

Understanding the Stage 2 Turbo Upgrade

A Stage 2 turbo upgrade typically involves replacing the stock turbocharger with a larger, more efficient unit. This allows for increased airflow and power output. Additionally, it often requires supporting modifications to ensure optimal performance and reliability.

Key Components of a Stage 2 Upgrade

  • Upgraded turbocharger
  • High-flow fuel injectors
  • Performance intercooler
  • Upgraded intake and exhaust systems
  • ECU remapping or tuning

Installation Process

Installing a Stage 2 turbo on your BMW 335i requires mechanical knowledge and the right tools. Below is a step-by-step guide to assist you through the process.

Tools Required

  • Socket set
  • Wrench set
  • Torque wrench
  • Jack and jack stands
  • Intercooler piping tools
  • Diagnostic tool for ECU tuning

Step-by-Step Installation

Follow these steps for a successful installation:

  • Preparation: Disconnect the battery and gather all tools and parts.
  • Remove the OEM Turbo: Take off the engine cover, intake system, and exhaust components to access the turbocharger.
  • Install the New Turbo: Position the new turbo in place, ensuring all gaskets and seals are correctly aligned.
  • Upgrade Supporting Components: Replace fuel injectors, install the performance intercooler, and upgrade intake and exhaust systems.
  • ECU Tuning: Use a diagnostic tool to remap the ECU for optimal performance.
  • Reassemble: Reinstall all components in reverse order, ensuring everything is tightened to manufacturer specifications.
  • Final Checks: Reconnect the battery, check for leaks, and perform a test drive.

Performance Benefits

The Stage 2 turbo upgrade offers numerous performance benefits that enhance the driving experience of the BMW 335i.

Increased Horsepower and Torque

One of the most significant advantages of a Stage 2 upgrade is the substantial increase in horsepower and torque. Drivers can expect improvements in acceleration and overall performance.

Improved Throttle Response

The upgraded turbocharger provides quicker spool times, resulting in improved throttle response. This enhancement allows for a more engaging driving experience.

Enhanced Fuel Efficiency

With the right tuning, a Stage 2 turbo can enhance fuel efficiency. The engine runs more efficiently, leading to better miles per gallon without sacrificing power.

Better Engine Cooling

Installing a performance intercooler helps maintain lower intake temperatures, which can lead to better engine performance and longevity. Cooler air improves combustion efficiency.

Conclusion

The BMW 335i Stage 2 turbo upgrade is a fantastic way to unlock the full potential of your vehicle. With increased power, improved efficiency, and enhanced driving dynamics, this upgrade is a worthy investment for any enthusiast.

Always ensure that you follow proper installation procedures and consider professional assistance if needed. Enjoy the thrill of your newly upgraded BMW 335i!