Key Benefits of the Subaru STI Turbocharger
Elecdurauto's Subaru STI turbocharger provides a robust and OE-compliant solution for performance rebuilders and professional installers seeking to restore stock power delivery and throttle response. Designed as a VF48 turbo replacement for the 2008–2021 Subaru STI with the 2.5L EJ257 engine, this high-precision unit (OE# F56CAD-S0057B) ensures a perfect fit, superior thermal endurance, and reliable boost under aggressive driving conditions.
Direct Replacement for Subaru 2.5L Turbo (2008–2021ws): Bolt-on turbocharger upgrade for Subaru WRX STI models powered by the 2.5L EJ257 engine — precisely engineered to replace OE part number F56CAD-S0057B (VF48), this unit delivers seamless OEM fitment without the need for ECU tuning or hardware modifications.
Pre-Calibrated Electronic Actuator: Matched to OE specs — install and go, no reprogramming needed.
Heavy-Duty Construction: Equipped with a forged aluminum compressor wheel and cast iron turbine housing for long-term reliability under load.
Advanced Balancing Technology: Both thermal and high-speed dynamic balancing reduce vibration and premature wear.
Global Emission Compliant: Meets Euro V and Tier 4 standards — ideal for regulated markets.
Export-Ready Inventory: Units are stocked and ready to ship with fast international logistics.
Built for Value-Driven Buyers: Ideal for fleets and wholesale buyers focused on durability, fitment, and cost savings.
Subaru STI Turbocharger Technical Specifications
| Specification | Description |
| Product Name | Turbocharger Assembly |
| Compatible Vehicles | 2008、2009、2010、2011、2012、2013、2014、2015、2016、2017、2018、2019、2020、2021 Subaru WRX STI (2.5L Turbocharged Gas Engine) |
| Fitment Type | Direct Bolt-On Replacement |
| Condition | 100% Brand New |
| Dimensions (L × W × H) | 15.0 × 12.0 × 10.0 inches (estimated) |
| Weight | 12.0 lbs (5.4 kg) (estimated) |
| Actuator Included | Yes – Pre-calibrated pneumatic wastegate actuator |
| Cooling Method | Liquid-cooled (Coolant) |
| Wastegate Type | Integrated Electronic Wastegate |
| Gasket / Seal Kit Included | Yes |
| Oil Supply Line Included | No |
| Exhaust Manifold Included | No |
| Exhaust Brake Included | No |
| Temperature Sensor Included | No |
| Speed Sensor Included | No |
| Position Sensor Included | No |
| Geometry Type | Fixed Geometry |
| CHRA (Core Assembly) | Replaceable Cartridge (CHRA) |
| Compressor Wheel | Cast Aluminum |
| Compressor Outlet Diameter | 2.0 in / 50 mm (estimated) |
| Balancing Method | VSR High-Speed & Thermal Balanced |
| Emission Compliance | Euro 4 |
Vehicle Compatibility with Subaru STI Turbocharger
| Year | Make | Model | Body & Trim | Engine & Transmission |
| 2008-2014 | Subaru | Impreza WRX STI | Sedan - All Trims | 2.5L H4 - Turbocharged Gas |
| 2008-2014 | Subaru | Impreza WRX STI | Hatchback - All Trims | 2.5L H4 - Turbocharged Gas |
| 2015-2021 | Subaru | WRX STI | Sedan - All Trims | 2.5L H4 - Turbocharged Gas |
OE-Level Support System Behind Every Subaru STI Turbocharger
Elecdurauto guarantees that every Subaru STI turbocharger—purpose-built to replace OE part number F56CAD-S0057B (VF48)—meets rigorous OEM-grade standards through a fully integrated manufacturing ecosystem. From CNC-machined RHF55 compressor housings to high-speed VSR balancing and serialized quality checks, each unit is engineered with precision and traceability at its core.
![OE-Level Support System Behind Every Turbocharger]()
Subaru STI Turbocharger Production Workflow
Elecdurauto follows a fully integrated production process to ensure every turbocharger meets strict quality and performance standards. From raw material inspection and CNC machining to automated assembly and dynamic testing, each step is optimized for precision, consistency, and efficiency. This end-to-end system guarantees reliable output for both OEM replacement and aftermarket demand.
![Material Incoming Quality Control]()
Material Incoming Quality Control
![Precision CNC Machining Cluster]()
Precision CNC Machining Cluster
![Automated Material Loading Lathe (LU3000EX)]()
Automated Material Loading Lathe
![Three-Axis CMM Inspection (Xondex)]()
Three-Axis CMM Inspection
![In-Process Quality Monitoring]()
In-Process Quality Monitoring ![Automated Assembly Workstation (with QR Traceability)]()
Automated Assembly Workstation
![Functional Testing & Assembly Validation]()
Functional Testing & Assembly Validation
![Turbocharger Performance Test Bench]()
Turbocharger Performance Test Bench
OEM & Aftermarket Uses for Subaru STI Turbocharger
Subaru STI Turbocharger Certifications & Industry Standards
![ISO 9001, ISO 14001, ISO 45001, IATF 16949 certified ignition coil manufacturer for OEM and aftermarket supply]()
Why Choose Elecdurauto for Your Subaru STI Turbocharger
Elecdurauto is more than a turbocharger supplier — we are a precision manufacturing partner trusted by global distributors, fleets, and aftermarket brands. Backed by world-class production capabilities, OEM-grade engineering, and a deep understanding of B2B demands, we deliver value far beyond the product.
1. World-Class Manufacturing Infrastructure
Over $45 million USD in total investment
Annual capacity: 1,000,000+ complete turbos and 2,000,000 CHRA units
Equipped with CNC machines and semi-automated lines from the US, UK, Germany, Japan, and Switzerland
Advanced R&D and testing center for turbochargers and core components
EMS 4.0 smart factory system with full digital integration (ERP, MES, PLM, CRM, SCM)
2. Precision. Speed. Flexibility.
Covers 500+ turbo models compatible with major OE brands
Supports small-batch, multi-spec orders with fast delivery (7–15 working days)
Maintains safety stock for fast-moving SKUs and urgent shipments
Flexible shipping: door-to-door by air, sea, or express (DHL, FedEx, Maersk)
3. Engineered for Performance & Durability
Turbochargers feature Inconel turbine wheels and forged aluminum compressors
Tested for thermal endurance (950°C–1100°C) and long-cycle durability
Designed to reduce emissions, increase torque, and improve fuel economy
Ideal for both automotive and marine applications with international-level quality
4. OEM-Standard Quality & Traceability
Manufactured to IATF 16949, ISO 9001, CE, RoHS certified standards
Strict QA at every step — from raw materials to final balance tests
Supports OEM & private label services (laser logo, QR traceability, custom packaging)
1-Year Unlimited Mileage Warranty & free QC reports included with every order
5. Customer-Driven R&D & Customization
100% customer-oriented design and reverse engineering services
Tailored development for special materials, designs, or performance upgrades
From full turbo assemblies to individual components — we are your one-stop turbo center
FAQs About the Subaru STI VF48 Turbocharger Replacement
1. Is this turbocharger compatible with my 2015 Subaru STI 2.0L engine?
Yes, this Subaru STI turbocharger is crafted as a direct-fit replacement, matching OE number F56CAD-S0057B. It's a straightforward turbo replacement for the 2015 Subaru WRX STI with 2.0L FA20 engine, designed to fit seamlessly without any adjustments, saving you time and hassle.
2. What are the signs that my Subaru STI turbocharger needs replacing?
Watch for slow throttle response, heavy exhaust smoke, oil seepage around the turbo, or a steady check engine warning. These issues often point to worn components or a failing Subaru STI turbo unit, signaling the need for a turbo replacement for the 2015 Subaru STI to regain peak performance.
3. Does this Subaru STI turbo assembly come with an actuator and installation gaskets?
Definitely. This Subaru STI turbocharger replacement includes a pre-calibrated electronic actuator and a full gasket/seal package, providing a complete turbo kit for the 2015 Subaru STI to simplify your upgrade or repair.
4. How long does the installation of the Subaru STI turbocharger take?
A qualified technician can typically install this turbo for the Subaru STI in 2–3 hours, depending on engine bay access. We offer detailed guides to ease the Subaru STI turbo replacement process, reducing downtime and expenses.
5. What's the warranty on this F56CAD-S00578-compatible turbocharger?
Elecdurauto Subaru STI turbo comes with a 1-year unlimited mileage warranty from Elecdurauto, covering defects in materials or construction. Each turbocharger for the 2015 Subaru STI ships with a quality control certificate for added trust.
6. Can I use this turbocharger for tuned or modified Subaru STI applications?
Built to OE standards, this Subaru STI turbo upgrade supports light tuning or stage 1 enhancements, as long as boost levels remain within safe limits. It's a durable choice to boost your 2015 Subaru STI turbo performance, ideal for enthusiasts chasing extra power.
7. Do you provide private labeling or customized packaging for distributors?
Yes, we provide full OEM/ODM services, including custom branding, barcode labels, and tailored packaging for this turbocharger for the Subaru STI. This benefits 2015 Subaru STI turbo distributors, enhancing market presence in retail or wholesale.
8. How fast can you ship this Subaru STI turbo internationally?
Orders for this Subaru STI turbo replacement are processed within 2–5 days and shipped via DHL, FedEx, or sea freight. International delivery for your 2015 Subaru STI turbocharger takes 7–15 business days, ensuring quick access to this sought-after part.
9. Is this turbocharger compatible with Amazon FBA or Mercado Libre fulfillment?
Yes, this turbo for the 2015 Subaru STI features FBA-ready packaging with compact dimensions, model-specific barcodes, and tracking, making it perfect for e-commerce platforms like Amazon or Mercado Libre. This streamlines your online sales strategy and meets global market needs.
Material Incoming Quality Control
