Subaru WRX STI Fuel Rail Line Kit - COBB - `08-`21. A purpose-built line and fitting solution for plumbing COBB fuel rails on 2008–2021 WRX STI models.

Designed for fitment and function, this kit pairs with COBB rails and common regulators to create a clean parallel feed/return layout. Application-specific line lengths and durable fittings simplify installation and help promote consistent pressure across cylinders—well suited for builds with increased fuel demand and future fueling upgrades.

Features

• Direct fit for 2008–2021 Subaru WRX STI
• Intended for use with COBB fuel rails
• Parallel fuel rail routing for balanced delivery
• Application-specific line lengths and fittings
• Tidy, serviceable underhood layout

Have questions or need guidance? Call our team at 512-982-9393 (TX) or 562-981-6800 (CA). We operate two locations—in Austin, Texas and the Los Angeles, California area—offering professional installation and customization services.

Thinking about multiple items? Contact us for potential shipping discounts. We install on premises at both locations.

CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov