Upgrading to a Borgwarner Efr 7670 for Your Ms3: Installation and Power Gains Explained

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The BorgWarner EFR 7670 turbocharger is a popular upgrade for MazdaSpeed3 (MS3) enthusiasts looking to enhance performance. This article will guide you through the installation process and the power gains you can expect.

Understanding the BorgWarner EFR 7670 Turbocharger

The EFR 7670 is known for its exceptional performance and efficiency. With a larger compressor and turbine wheel compared to stock turbos, it can significantly increase horsepower and torque.

Installation Process

Installing the EFR 7670 on your MS3 involves several steps. Below is a detailed guide to help you through the process.

Tools and Materials Needed

  • Socket set
  • Wrenches
  • Torque wrench
  • Intercooler piping
  • Oil and coolant lines
  • ECU tuning software
  • New gaskets

Step-by-Step Installation

Follow these steps to install your BorgWarner EFR 7670 turbocharger:

  • Remove the stock turbo: Disconnect the battery, remove the intake, and unbolt the stock turbo from the manifold.
  • Install new oil and coolant lines: Ensure proper routing to prevent leaks.
  • Mount the EFR 7670: Position the turbo on the manifold and secure it with bolts.
  • Connect intercooler piping: Ensure all connections are tight to prevent boost leaks.
  • Reinstall intake and other components: Put everything back together, ensuring no parts are left loose.
  • ECU tuning: Use tuning software to adjust fuel maps and boost levels for optimal performance.

Power Gains Expected

Upgrading to the EFR 7670 can lead to significant power gains. Here’s what you can expect:

  • Horsepower Increase: Many users report gains of 50-100 horsepower depending on supporting mods and tuning.
  • Torque Improvement: Torque can also see a significant boost, enhancing overall drivability.
  • Improved Responsiveness: The EFR series is designed for quicker spool times, making the car feel more responsive.

Conclusion

Upgrading to a BorgWarner EFR 7670 turbocharger can dramatically enhance the performance of your MazdaSpeed3. With proper installation and tuning, you can enjoy substantial power gains and improved driving dynamics.