Blouch Performance Turbo 2.5XT-R Twin Scroll Ball Bearing Turbocharger 2002-2007 WRX / 2004-2021 STI | 500HP Capability | High-Flow Twin Scroll Turbocharger
Overview
The Blouch Performance Turbo 2.5XT-R is a high-performance twin scroll ball bearing turbocharger designed specifically for Subaru WRX models from 2002 to 2007 and WRX STI models from 2004 to 2021. Built for enthusiasts seeking substantial power gains, this turbocharger supports up to 500 horsepower, making it an ideal upgrade for serious street and track applications. It is engineered to deliver quick spool times and efficient boost response, enhancing the driving experience without sacrificing reliability.
Blouch’s engineering approach centers on low inertia and high flow efficiency. The 2.5XT-R features a custom low friction ceramic ball bearing CHRA and a 71mm XT compressor wheel paired with a 60mm turbine wheel, both optimized for maximum airflow and minimal lag. The twin scroll turbine housing improves exhaust scavenging and boost response, a critical factor for Subaru’s boxer engine layout. This turbo stands out for its precision manufacturing and attention to detail, ensuring consistent performance and durability under demanding conditions.
For Subaru owners, this turbocharger offers a significant step up in power potential while maintaining the platform’s characteristic responsiveness. The inclusion of water pipes, oil drain tube, and a braided stainless steel turbo oil feed line simplifies installation and supports long-term reliability. However, installation requires a JDM twin scroll header, uppipe, and downpipe to fully realize the turbo’s capabilities. This configuration is perfect for enthusiasts aiming to build a high-output WRX or STI with strong mid-range torque and top-end power.
Features & Specifications
This Blouch Performance Turbo 2.5XT-R turbocharger is engineered for 2002-2007 Subaru WRX and 2004-2021 Subaru WRX STI models and features a twin scroll ball bearing design. Constructed with a custom ceramic ball bearing CHRA and high-flow turbine and compressor wheels, it delivers rapid spool and high power output for Subaru enthusiasts seeking up to 500 horsepower.
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Brand: Blouch Performance Turbo
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Product: 2.5XT-R Twin Scroll 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: High-grade turbine and compressor alloys
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Finish: Natural metal finish
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Construction: Custom low friction ceramic ball bearing CHRA, twin scroll turbine housing
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Origin: Not specified
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Power Gains: Up to 500 HP
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Turbine Wheel Size: 60mm low inertia
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Compressor Wheel Size: 71mm XT
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Compressor Flow Rate: 47 lbs/min
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Turbine Housing: BPT twin scroll
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Included Components: Water pipes, oil drain tube, braided stainless steel turbo oil feed line
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Tuning Required: Yes, professional tuning recommended
Key Benefits
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Performance: Supports up to 500 horsepower with rapid spool and strong mid-range torque for aggressive driving.
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Durability: Ceramic ball bearing CHRA reduces friction and heat, enhancing turbo longevity under high boost conditions.
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Fitment: Designed specifically for 2002-2007 WRX and 2004-2021 STI models, ensuring platform-specific compatibility.
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Efficiency: Twin scroll turbine housing improves exhaust flow and boost response, minimizing lag.
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Quality: Includes braided stainless steel oil feed line and necessary water and oil plumbing for reliable operation.
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Upgrade Potential: Ideal for Subaru enthusiasts building high-output turbo setups with supporting JDM twin scroll exhaust components.
What's Included
- 1× Blouch Performance Turbo 2.5XT-R Twin Scroll Ball Bearing Turbocharger
- Water pipes
- Oil drain tube
- Braided stainless steel turbo oil feed line
Installation & Compatibility
Installation of the Blouch 2.5XT-R turbocharger requires moderate to advanced mechanical skills and is best performed by a professional familiar with Subaru turbo systems. The turbo is a direct fit for the specified WRX and STI models but requires a JDM twin scroll header, uppipe, and downpipe for proper installation and optimal performance. Professional tuning is essential to safely unlock the turbo’s full power potential and ensure engine reliability. No major modifications to the engine bay are typically necessary, but verifying fitment for your specific year and trim is recommended before purchase.
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Professional Installation: Recommended
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Modifications Required: JDM twin scroll header, uppipe, and downpipe required; tuning required
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Verify Compatibility: Confirm fitment for your specific year and trim level
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