Blouch Performance Turbo 1.5XT-R Twin Scroll Ball Bearing Turbocharger 2002-2007 WRX / 2004-2021 STI | 470HP Capability | High-Flow Twin Scroll Turbocharger
Overview
The Blouch Performance Turbo 1.5XT-R Twin Scroll Ball Bearing Turbocharger is a high-performance upgrade designed specifically for Subaru WRX models from 2002 to 2007 and WRX STI models from 2004 to 2021. This turbocharger is engineered to deliver substantial power gains, supporting up to 470 horsepower, making it an ideal choice for enthusiasts looking to push their Subaru’s performance envelope. It is tailored for those who demand reliable, high-output forced induction with improved spool characteristics and durability.
Built with a custom low friction, low inertia ceramic ball bearing CHRA, the 1.5XT-R offers superior response and efficiency compared to traditional journal bearing turbos. The combination of a 56.5mm turbine wheel and a 71mm Blouch XT compressor wheel is optimized to maximize airflow and boost response, while the twin scroll turbine housing enhances exhaust pulse energy for improved spool and reduced turbo lag. Blouch’s engineering focus on precision and quality ensures this turbocharger stands out as a premium upgrade for Subaru performance builds.
For Subaru owners, this turbocharger translates to a significant step up in power potential and throttle response, especially when paired with the appropriate supporting modifications and tuning. The inclusion of water pipes, oil drain tube, and a braided stainless steel turbo oil feed line ensures robust cooling and lubrication, critical for sustained high-performance operation. Note that installation requires compatible JDM twin scroll header, uppipe, and downpipe to fully realize the benefits of this turbo setup.
Features & Specifications
This Blouch Performance Turbo 1.5XT-R is engineered for Subaru WRX and WRX STI platforms and features a twin scroll ball bearing design. Constructed with a ceramic ball bearing CHRA and high-flow turbine and compressor wheels, it delivers enhanced spool and power for Subaru enthusiasts seeking a reliable high-output turbocharger upgrade.
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Brand: Blouch Performance Turbo
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Product: 1.5XT-R Twin Scroll Ball Bearing Turbocharger
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Part Number: N/A
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Fitment: 2002-2007 Subaru WRX / 2004-2021 Subaru WRX STI
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Material: High-grade billet aluminum compressor wheel, ceramic ball bearing CHRA
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Finish: Natural metal finish with stainless steel braided oil feed line
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Construction: CNC machined compressor wheel, welded turbine housing
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Origin: Manufactured by Blouch Performance Turbo
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Power Gains: Supports up to 470 HP
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Tuning Required: Yes, professional ECU tuning recommended
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Turbocharger Type: Twin scroll, ball bearing
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Turbine Wheel Size: 56.5mm low inertia
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Compressor Wheel Size: 71mm Blouch XT
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Boost Pressure Capacity: 47 lbs per minute BPT
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Included Components: Water pipes, oil drain tube, braided stainless steel turbo oil feed line
Key Benefits
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Performance: Delivers significant horsepower gains up to 470 HP with improved spool and boost response.
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Durability: Ceramic ball bearing CHRA reduces friction and heat, extending turbo life under high stress.
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Fitment: Designed specifically for Subaru WRX and WRX STI models ensuring precise compatibility.
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Efficiency: Twin scroll turbine housing optimizes exhaust flow for faster spool and reduced lag.
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Quality: High-grade materials and CNC machining provide consistent performance and reliability.
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Support Components: Includes essential water and oil lines for proper cooling and lubrication.
What's Included
- 1× Blouch Performance Turbo 1.5XT-R Twin Scroll Ball Bearing Turbocharger
- Water pipes
- Oil drain tube
- Braided stainless steel turbo oil feed line
Installation & Compatibility
Installation of the Blouch 1.5XT-R turbocharger is a moderately complex process best suited for experienced enthusiasts or professional shops. It requires removal of the factory turbo and installation of compatible JDM twin scroll header, uppipe, and downpipe to ensure proper fitment and performance. Specialized tools for turbo removal and oil line connections are necessary. Professional ECU tuning is strongly recommended to optimize air-fuel ratios, boost control, and engine safety when upgrading to this turbocharger.
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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 Subaru WRX or WRX STI year and trim
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