Cobb 08-17 Subaru STi Fuel Rail Line Kit

Part Details:

The COBB Fuel Rail Line Kit is designed to connect and route fuel between the fuel rails on Subaru STI models, providing a clean and organized fuel line solution for upgraded fuel systems.

This kit is commonly used when installing aftermarket fuel rails, fuel pressure regulators, or return-style fuel systems. By replacing factory fuel line routing, it helps ensure proper fuel flow and compatibility with performance-oriented fuel system components.

Application & Compatibility

• Subaru STI (2008–2017)

Purpose & Use

Fuel rail line kits are used to properly route fuel between fuel rails and supporting components while maintaining consistent fuel delivery. This is especially important in modified fuel systems where factory fuel lines may no longer align with upgraded components.

This kit is typically paired with upgraded fuel rails, fuel pressure regulators, and high-flow fuel pumps as part of a complete fuel delivery setup.

Key Features

• Designed to connect fuel rails in Subaru STI fuel systems
• Supports upgraded and return-style fuel system configurations
• Provides clean and organized fuel line routing
• Ideal for use with aftermarket fuel delivery components

Recommended Supporting Fuel Components

• Fuel Rails – commonly upgraded alongside fuel line kits to support increased fuel flow and system reconfiguration.
• Fuel Pressure Regulators – help maintain consistent fuel pressure in modified and return-style fuel systems.
• Fuel Pumps – ensure adequate fuel supply when upgrading fuel system components.
• Fuel Delivery Components – explore complete fuel system solutions designed to work together.

Learn more about COBB Tuning performance solutions and supporting components