The Aeromotive 14182 Top Feed Fuel Rail Kit is a high-performance billet aluminum fuel delivery upgrade engineered specifically for the 2002–2014 Subaru WRX and 2007–2014 Subaru STI. Designed for enthusiasts and tuners pushing beyond factory power limits, this kit replaces the restrictive OEM side-feed injector setup with a true top-feed configuration — unlocking compatibility with a vastly wider selection of high-flow injectors. Whether you're running a built motor, a large turbo, or simply want rock-solid fuel delivery on a modified EJ-series engine, this is the definitive fuel rail solution.
Key Features & Benefits
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Top-Feed Conversion — Converts the factory Subaru side-feed injector layout to a top-feed design, enabling the use of virtually any aftermarket top-feed injector (550cc, 1000cc, 1650cc, and beyond) for serious power builds.
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Billet 6061-T6 Aluminum Construction — CNC-machined from aerospace-grade billet aluminum for maximum strength, corrosion resistance, and a precise fit that OEM and cast alternatives simply can't match.
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Black Anodized Finish — Hard anodized black finish provides long-lasting protection against fuel, heat, and corrosion while delivering a clean, aggressive appearance under the hood.
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High-Flow Internal Passages — Aeromotive's engineered internal flow geometry minimizes pressure drop across all four injector ports, ensuring consistent fuel delivery at high demand — critical for boosted and high-horsepower applications.
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Direct Bolt-On Fitment — Precision-machined to factory mounting points on EJ-series engines; no cutting, drilling, or fabrication required for proper installation.
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AN Inlet/Outlet Ports — Features industry-standard AN fittings for easy integration with Aeromotive fuel systems, braided lines, and aftermarket fuel system components.
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Supports Extreme Power Levels — Engineered to flow enough fuel for builds well beyond 600+ WHP when paired with appropriate injectors, fuel pump, and regulator.
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Complete Kit — Includes all necessary hardware and O-rings for a straightforward installation without sourcing additional components.
What's Included
- 2x CNC-Machined Billet Aluminum Top-Feed Fuel Rails (Driver & Passenger Side)
- Mounting hardware and fasteners
- Injector O-ring seals (top-feed)
- AN port fittings/plugs
- Installation instructions
