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When it comes to modifying your Subaru WRX or Mitsubishi Evo to handle over 400 horsepower, upgrading the clutch and transmission is crucial. These components must endure increased power, torque, and driving conditions that can lead to premature wear. This article explores the best clutch and transmission upgrades and their longevity.
Understanding the Importance of Upgrades
Both the WRX and Evo are renowned for their performance capabilities, but stock components may struggle under higher power levels. Upgrading the clutch and transmission ensures that your vehicle can handle the increased demands without compromising performance.
Clutch Upgrades
A high-performance clutch is essential for transferring power effectively. Here are some popular options:
- Exedy Stage 1 Clutch: Known for its durability and smooth engagement, it can handle up to 400 hp.
- ACT Heavy Duty Clutch: Offers high torque capacity and is designed for aggressive driving.
- Clutch Masters FX400: This clutch is popular for its ability to handle significant power while maintaining streetability.
Longevity of Clutch Options
The lifespan of a clutch depends on various factors, including driving style, installation quality, and maintenance. Generally, a high-performance clutch can last:
- Exedy Stage 1: 20,000 to 40,000 miles under spirited driving conditions.
- ACT Heavy Duty: 15,000 to 30,000 miles depending on usage.
- Clutch Masters FX400: 20,000 to 50,000 miles with proper care.
Transmission Upgrades
Upgrading the transmission is equally important for managing increased power. Here are some popular transmission upgrades:
- OEM STI Transmission: A direct swap that offers improved strength and performance.
- Dog Box Transmission: Designed for racing, it provides quicker shifts but can be harsher on the road.
- Aftermarket Gear Sets: Companies like PPG offer gear sets that can handle high horsepower while providing better ratios.
Longevity of Transmission Options
The durability of your transmission upgrade will depend on several factors, including how you drive and the quality of the components. Typical lifespans include:
- OEM STI Transmission: 50,000 to 100,000 miles with regular maintenance.
- Dog Box Transmission: 10,000 to 30,000 miles, as they are designed for racing conditions.
- Aftermarket Gear Sets: 30,000 to 70,000 miles, depending on the material and usage.
Choosing the Right Parts
Selecting the right clutch and transmission upgrades involves considering your power goals, driving style, and budget. Here are some tips:
- Assess your power needs and choose components rated above your expected output.
- Consider your driving style; if you race frequently, opt for more robust options.
- Consult with professionals or forums to get feedback on parts that have worked well for others.
Conclusion
Upgrading the clutch and transmission in your WRX or Evo is essential for handling over 400 horsepower effectively. By choosing high-quality components and understanding their longevity, you can ensure your vehicle performs at its best while maintaining reliability. Remember to consider your specific needs and consult with experts to make the best choices for your build.