Blouch Performance Turbo Dominator 2.5XT-R Ball Bearing Turbocharger 2002-2007 WRX / 2004-2021 STI | 490HP Capability | High-Flow Ball Bearing Turbo
Overview
The Blouch Performance Turbo Dominator 2.5XT-R is a high-performance ball bearing turbocharger designed specifically for Subaru WRX and WRX STI models from 2002 to 2007 and 2004 to 2021 respectively. Engineered to support up to 490 horsepower on the EJ25 engine, this turbocharger offers a significant upgrade for enthusiasts seeking substantial power gains while maintaining reliable spool characteristics. It’s ideal for those who want to push their Subaru’s performance envelope without sacrificing drivability or response.
Blouch’s design philosophy centers on maximizing efficiency and minimizing inertia. The Dominator 2.5XT-R features a custom low-friction ceramic ball bearing CHRA and a fully-machined billet compressor wheel that optimizes airflow and compressor efficiency. The 60mm turbine wheel paired with a 71mm XT compressor wheel ensures excellent flow capacity, while the option of 8cm or 10cm exhaust housings allows for tailored spool and power delivery characteristics. This attention to detail and use of advanced materials sets Blouch apart as a leader in Subaru turbo upgrades.
For Subaru owners, this turbocharger translates to quicker spool times, a broad and flat torque curve, and sustained peak power output. The pre-calibrated 15 PSI actuator provides a balanced boost level suitable for street and track use, while the included braided stainless steel oil and coolant lines ensure durability and ease of installation. Whether upgrading a daily driver or building a high-horsepower track car, the Dominator 2.5XT-R delivers a reliable and potent forced induction solution tailored to Subaru’s EJ25 platform.
Features & Specifications
This Blouch Performance Turbo Dominator 2.5XT-R turbocharger is engineered for 2002-2007 Subaru WRX and 2004-2021 WRX STI models and features a custom ceramic ball bearing CHRA and a 71mm billet compressor wheel. Constructed from high-grade materials with precision machining, it delivers quick spool and high flow capacity for Subaru enthusiasts seeking up to 490 horsepower on the EJ25 engine.
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Brand: Blouch Performance Turbo
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Product: Dominator 2.5XT-R Ball Bearing Turbocharger
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Part Number: N/A
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Fitment: 2002-2007 WRX / 2004-2021 STI
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Material: Billet aluminum compressor wheel, ceramic ball bearing CHRA
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Finish: Standard turbine housing (optional black ceramic coating available)
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Construction: Fully machined billet compressor wheel, custom CHRA
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Origin: Not specified
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Power Gains: Up to 490 HP
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Tuning Required: Recommended
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Compressor Wheel Size: 71mm XT billet compressor wheel
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Turbine Wheel Size: 60mm high flow low inertia turbine wheel
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Exhaust Housing Options: 8cm or 10cm available
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Boost Pressure: Pre-calibrated 15 PSI actuator (adjustable)
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Included Components: Braided stainless steel oil feed line, oil feed restrictor, turbo oil drain tube, coolant lines, mounting gaskets
Key Benefits
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Performance: Supports up to 490 horsepower with quick spool and broad torque curve for enhanced driving dynamics.
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Durability: Ceramic ball bearing CHRA reduces friction and wear, improving turbo longevity under high boost conditions.
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Fitment: Direct bolt-on design with all necessary oil and coolant lines included for seamless installation on EJ25-powered WRX and STI models.
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Adjustability: Comes with an upgrade actuator pre-set to 15 PSI, allowing for boost tuning flexibility to match your build goals.
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Quality: Fully machined billet compressor wheel and custom turbine wheel optimize airflow and efficiency for reliable power delivery.
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Value: Complete package with essential hardware included, reducing the need for additional parts or modifications.
What's Included
- 1× Blouch Performance Turbo Dominator 2.5XT-R Ball Bearing Turbocharger
- 1× Braided stainless steel turbo oil feed line
- 1× Oil feed restrictor
- 1× Turbo oil drain tube
- Coolant lines
- Turbo mounting gaskets
- Pre-calibrated adjustable boost actuator (15 PSI)
- Installation instructions
Installation & Compatibility
Installation of the Dominator 2.5XT-R turbocharger requires moderate mechanical skill and familiarity with Subaru turbo systems. While the kit includes all necessary oil and coolant lines and mounting gaskets, professional installation is recommended to ensure proper fitment and to avoid potential issues with oil and coolant routing. Specialized tools for turbo removal and installation will be necessary. Because this turbo supports significantly increased power output, a proper ECU tune is required to optimize performance and maintain engine reliability. Verify compatibility with your specific WRX or STI year and trim before purchase, as some minor adjustments may be needed depending on existing modifications.
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Professional Installation: Recommended
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Modifications Required: Tuning required; minor adjustments possible depending on vehicle setup
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Verify Compatibility: Confirm fitment for your specific year and trim level
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