Specifications Part Details: The COBB Fuel Rails are designed to support upgraded fuel delivery systems in Subaru STI models by providing consistent and balanced fuel distribution to each injector. These fuel rails are commonly used in performance-oriented builds where factory fuel components may become a limitation. By improving fuel flow capacity and compatibility with aftermarket fuel system components, these rails help support higher power levels and modified fuel system configurations. They are frequently included as part of complete COBB fuel system packages and flex fuel upgrades. Application & Compatibility Subaru STI (2008–2017) Purpose & Use Fuel rails play an important role in ensuring even fuel distribution across all cylinders, particularly in engines running upgraded injectors, higher fuel pressures, or ethanol-capable fuel systems. Upgraded fuel rails help reduce pressure drop and support stable fueling under load. These fuel rails are commonly paired with upgraded fuel pumps, fuel pressure regulators, and fuel line kits as part of a complete fuel delivery solution. Key Features Designed for Subaru STI fuel systems Supports increased fuel flow and injector compatibility Ideal for use in upgraded and performance-oriented fuel systems Commonly included in COBB fuel system and flex fuel packages Recommended Supporting Fuel Components Fuel Injectors – upgraded injectors are commonly paired with fuel rails to support increased fuel flow and power goals. Fuel Pressure Regulators – help maintain consistent fuel pressure when running higher-flow fuel systems. Fuel Lines – ensure proper routing and compatibility when upgrading fuel rails. Fuel Pumps – provide the fuel volume required to support upgraded rails and injectors. Learn more about COBB Tuning performance solutions and supporting components Shipping Shipping Options: WrenchMastersAuto.com ships your performance parts safely, quickly and conveniently nationwide via the most trusted shipping carriers such as: UPS, Fed Ex, USPS, and DHL. Delivery Times: In Stock: 3-7 Business Days Custom Orders: 2-6 Weeks, Please Email: [email protected] or Call: 727-565-9808 for Questions. Enjoy FREE SHIPPING on most orders over $199! Contact WrenchMasters Have Questions? Need Assistance? 727-565-9808 Our expert team members are available Mon-Friday 8:00 AM to 5:30 PM EST to provide support and answer any questions or concerns before or after your parts purchase. Part Installation Want your performance parts professionally installed? Save time, stress & hassle by scheduling your auto appointment online below. Our team of ASE certified master techs will make sure your parts are installed properly at our St.Petersburg, Florida shop location. Schedule Install Now Performance Parts Locator Looking for a specific part not listed on our online store? WrenchMastersAuto.com has access to over 40,000 aftermarket performance parts for vehicles of all makes and models, old and new. Fill out the parts request form below, and our parts specialist will contact you within 24-48 hours.
