Boost Lab BL58XR Dual Ball Bearing Turbocharger for Subaru STI (770HP)

Fits:
2004-2021 Subaru WRX STi (EJ25)
2002-2007 Subaru WRX (EJ20)

Unlock Maximum Performance with the Boost Lab BL58XR Turbocharger!

Take your Subaru WRX STi or WRX to the next level with the Boost Lab BL58XR Dual Ball Bearing Turbocharger, a high-performance upgrade designed to fit the stock location. Perfectly engineered for 2004-2021 Subaru WRX STi and 2002-2007 Subaru WRX models, this turbocharger is rated to handle up to 770 horsepower, making it the ultimate choice for enthusiasts aiming to dominate both the street and the track without converting to a rotated turbo setup.

The Boost Lab BL58XR offers an exceptional balance between street-friendly drivability and extreme top-end power, outperforming all other stock location turbos on the market. Whether you're cruising or pushing your Subaru to the limit at the track, this turbo delivers reliable and consistent performance, thanks to its advanced features and meticulous engineering.

Key Features:

• Boost Lab Exclusive 10-Blade 58XR Billet Compressor Wheel
  The 58mm inducer and 71mm exducer compressor wheel maximize airflow, ensuring rapid spool and high-efficiency power delivery, perfect for extracting every ounce of performance from your EJ-powered Subaru.

• Performance 60mm Inducer / 55mm Exducer Turbine Wheel
  The high-flow turbine wheel is designed to enhance exhaust gas flow while retaining great transient response. This translates maximum top-end power and fast spool-up, providing superior throttle response and increased horsepower.

• Dual Ceramic Ball Bearing CHRA (Center Housing Rotating Assembly)
  Equipped with dual ceramic ball bearings, the BL58XR provides increased durability and reduced friction, resulting in faster spool, improved reliability, and an extended lifespan, even under the harshest conditions.

• 10.5cm² Turbine Housing
  The larger turbine housing supports high exhaust flow, providing optimal boost control and maximizing exhaust efficiency for impressive power gains at higher RPMs.

• 1 Bar Wastegate Actuator
  Precision boost control is guaranteed by the 1 Bar wastegate actuator, which ensures stable boost levels during aggressive driving and high-performance scenarios.

• Complete Installation Kit
  The BL58XR comes with everything needed for a hassle-free installation, including all necessary gaskets, downpipe studs, and nuts, making the turbocharger upgrade seamless for Subaru enthusiasts.

Why Choose the Boost Lab BL58XR Turbocharger?

• Unmatched Power Output: Rated at an impressive 770 horsepower, the BL58XR provides unbeatable performance for those looking to achieve significant power gains without compromising reliability or drivability.

• Perfect Fit for Stock Location: Designed specifically for Subaru WRX and WRX STi, the BL58XR fits directly in the factory turbo location, eliminating the need for expensive and complex rotated or universal setups.

• Race-Proven Performance: With its advanced dual ball-bearing design and larger turbine housing, the BL58XR is perfect for both street and track applications, offering smooth power delivery and fast spool in any driving scenario.

• Durability and Reliability: Built with high-quality materials and precision engineering, the BL58XR is designed to handle extreme boost levels and deliver consistent performance under high stress, ensuring long-term reliability for Subaru performance enthusiasts.

Upgrade Your Subaru Today!

Whether you’re building a high-performance daily driver or a track-ready beast, the Boost Lab BL58XR Dual Ball Bearing Turbocharger offers the ultimate blend of reliability, power, and performance. Explore new levels of horsepower and enjoy better throttle response, all while retaining stock location fitment.

Additional Info

2618 Billet Aluminum Compressor Wheel

Boost Lab’s turbochargers feature a 2618 billet aluminum compressor wheel, precision-milled to maximize airflow. This high-strength material is engineered for optimal performance under extreme stress, ensuring top-tier performance in high-power applications.

Assembled in Tampa, FL

All Boost Lab turbochargers are meticulously assembled in Tampa, FL, ensuring the highest level of craftsmanship and quality for every unit we produce.

VSR Balancing

As a critical step in our build process, each turbocharger undergoes precision VSR (Vibration Sorting Rig) balancing using one of our Turbo Technics VSR balancing units. This essential process controls the turbo's vibration levels, reducing noise and significantly extending bearing life. More importantly, excessive vibration places undue stress on the turbo’s bearings, potentially leading to premature failure. By reducing vibration to safe levels, VSR balancing ensures your turbocharger operates quietly and reliably, without overloading its bearings.

Learn more about VSR balancing and why it's essential in proper turbocharger building practices. 

Talk with an Expert

At Boost Lab, you'll speak directly with our hands-on turbocharger experts. With over 35 years of combined turbocharger knowledge, we’re here to provide you with the best advice and support for your performance needs.

Custom Solutions

Boost Lab offers tailored solutions for various applications, ensuring you receive the perfect match for your specific performance goals. 

Explore More Turbo Options

Discover our full lineup of Subaru Performance Turbochargers, crafted to meet a wide variety of performance needs across different platforms and applications.