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The Subaru EJ255 engine is known for its reliability and potential for performance upgrades. In this article, we will explore the significant power gains achieved by utilizing the Cobb Accessport and an upgraded intercooler. With these modifications, enthusiasts can expect to see over 50 horsepower gains compared to the stock setup.
Understanding the EJ255 Engine
The EJ255 is a turbocharged flat-four engine that powers various Subaru models. Its design allows for a compact engine layout with a low center of gravity, which contributes to the vehicle’s handling characteristics. However, while the engine performs well in stock form, many owners seek to unlock its full potential through aftermarket modifications.
Stock Performance Metrics
In stock configuration, the EJ255 engine produces approximately 250 horsepower and 250 lb-ft of torque. These figures are respectable for a daily driver, but performance enthusiasts often desire more power for spirited driving or track days.
The Cobb Accessport: An Overview
The Cobb Accessport is a popular tuning device that allows users to modify their vehicle’s engine management system. It provides a user-friendly interface for uploading performance maps, adjusting settings, and monitoring engine parameters.
Key Features of the Cobb Accessport
- Preloaded performance maps for various modifications.
- Real-time data logging and monitoring.
- Customizable settings for optimal performance.
- Easy installation and removal.
Upgrading the Intercooler
An upgraded intercooler is essential for improving the performance of the EJ255 engine. The stock intercooler can become a bottleneck, especially when increasing boost levels. By installing a larger, more efficient intercooler, drivers can achieve lower intake temperatures, resulting in denser air and improved combustion efficiency.
Benefits of an Upgraded Intercooler
- Reduces intake temperatures for better performance.
- Improves throttle response.
- Enhances reliability under high boost conditions.
- Increases overall power output.
Performance Gains: Cobb Accessport and Intercooler Combo
When combining the Cobb Accessport with an upgraded intercooler, users can expect substantial performance gains. Many EJ255 owners report increases of over 50 horsepower and significant torque improvements.
Dyno Results
Dyno testing shows that with these modifications, the EJ255 engine can produce up to 300 horsepower and 300 lb-ft of torque. This transformation allows for a much more exhilarating driving experience, whether on the street or the track.
Installation Process
Installing the Cobb Accessport and upgraded intercooler is a straightforward process that can be completed with basic mechanical skills. Here’s a brief overview of the installation steps:
- Remove the stock intercooler.
- Install the upgraded intercooler, ensuring proper fitment.
- Connect all necessary hoses and clamps.
- Plug in the Cobb Accessport and upload the performance map.
Conclusion
The combination of the Cobb Accessport and an upgraded intercooler offers a fantastic opportunity for Subaru EJ255 owners to enhance their vehicle’s performance. With over 50 horsepower gains, this setup not only improves speed but also enhances the overall driving experience. Whether for daily driving or competitive racing, these modifications are worth considering for any EJ255 enthusiast.