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The Subaru WRX is known for its performance, but for enthusiasts looking to enhance their ride, modifications are key. One of the most impactful upgrades I’ve made is the installation of a 70mm throttle body. This modification not only improved my vehicle’s responsiveness but also transformed my driving experience altogether.
Understanding the Throttle Body
The throttle body is a crucial component of your vehicle’s air intake system. It controls the amount of air that enters the engine, which in turn affects performance and efficiency. A larger throttle body allows for more air, which can lead to increased horsepower and torque.
Why Upgrade to a 70mm Throttle Body?
Many Subaru WRX owners consider upgrading to a larger throttle body as part of their performance enhancements. Here are some reasons why a 70mm throttle body is a popular choice:
- Increased Airflow: A 70mm throttle body allows for greater airflow, which can lead to better engine performance.
- Improved Throttle Response: Drivers often notice a more immediate response when pressing the accelerator.
- Enhanced Tuning Potential: A larger throttle body provides more options for tuning, allowing for greater customization.
- Compatibility with Other Mods: If you have other performance upgrades, a larger throttle body can complement those enhancements.
Installation Process
Installing a 70mm throttle body on a Subaru WRX can be a straightforward process, especially for those familiar with automotive mechanics. Here’s a brief overview of the installation steps I followed:
- Gather Tools: Ensure you have the necessary tools, including sockets, wrenches, and a torque wrench.
- Remove the Old Throttle Body: Disconnect the battery, remove the intake manifold, and carefully detach the old throttle body.
- Install the New Throttle Body: Position the 70mm throttle body and secure it in place, making sure to use new gaskets.
- Reconnect Everything: Reattach the intake manifold and all electrical connections.
- Test the Installation: Reconnect the battery and start the engine to ensure everything is functioning correctly.
Performance Improvements
After installing the 70mm throttle body, I immediately noticed significant improvements in my WRX’s performance. The increased airflow translated to a more robust engine response, especially during acceleration. Here are some specific changes I experienced:
- Quicker Acceleration: The car felt more responsive, especially in lower gears.
- Better Mid-Range Power: I noticed an increase in power during mid-range RPMs, making overtaking easier.
- Improved Sound: The throttle body modification gave my WRX a more aggressive sound, enhancing the driving experience.
Real-World Driving Experience
Driving my Subaru WRX with the new 70mm throttle body felt like a completely different experience. The enhanced throttle response made it more enjoyable to navigate through twisty roads and city traffic alike. Here’s what stood out during my real-world driving:
- Enhanced Cornering: The quicker response allowed me to better control the vehicle during sharp turns.
- More Fun on the Track: On the track, the increased performance made for a more exhilarating experience.
- Daily Driving Benefits: Even in daily driving conditions, the car felt more lively and engaging.
Considerations Before Upgrading
While a 70mm throttle body can provide numerous benefits, there are some considerations to keep in mind before making the upgrade:
- Cost: Upgrading to a larger throttle body can be a significant investment.
- Tuning Requirements: You may need to tune your engine management system to fully utilize the upgrade.
- Potential for Increased Fuel Consumption: More airflow may lead to higher fuel consumption if not tuned properly.
Conclusion
Upgrading to a 70mm throttle body has been one of the most rewarding modifications I’ve made to my Subaru WRX. The noticeable improvements in performance and driving experience have made it worth the investment. For anyone considering a similar upgrade, ensure you weigh the benefits against potential considerations, and enjoy the thrill of enhanced performance!