COBB Fuel Rail Line Kit (343250) | Subaru STI 2008-2021

The COBB Fuel Rail Line Kit for the Subaru STI 2008-2021 is designed to support upgraded fueling demands with a clean, reliable, and high-flow solution. By replacing aging factory rubber lines with performance-oriented plumbing, this kit helps stabilize fuel delivery under boost, making it a strong foundation for ethanol blends, larger injectors, and higher power targets.

KEY FEATURES

• High-flow fuel line solution engineered for modified Subaru STI applications
• Replaces factory-style plumbing with performance-focused components
• Supports increased fueling demands from turbo and tuning upgrades
• Designed to integrate cleanly with COBB fuel system components
• Improves long-term reliability compared to aging OEM rubber lines

TECHNICAL SPECIFICATIONS

• Engineered for Subaru EJ-powered STI models 2008-2021
• Performance-oriented line routing to promote consistent fuel delivery
• Materials selected for compatibility with modern pump fuels including ethanol blends
• Designed to work in conjunction with COBB fuel rails and regulator components
• Configured to provide a tidy, serviceable layout in the engine bay

VEHICLE FITMENT

• Subaru STI 2008-2021

COBB delivers proven, data-driven performance solutions engineered to optimize your Subaru with unmatched precision and reliability.