Specifications Part Details: The COBB Fuel Pressure Regulator Kit is designed to provide precise and stable fuel pressure control for Subaru STI models. This kit is commonly used in upgraded fuel systems where consistent fuel pressure is critical for reliable engine operation. Designed as a return-style fuel pressure regulation solution, this kit allows excess fuel to be routed back to the tank while maintaining consistent pressure at the fuel rail. It is especially useful in vehicles running upgraded fuel pumps, injectors, or ethanol-capable fuel systems. Application & Compatibility Subaru STI (2008–2021) Features & Specifications Return-style fuel pressure regulator system Adjustable fuel pressure regulation Billet aluminum regulator body Includes mounting bracket and necessary fittings Designed for use with aftermarket fuel system components Purpose & Use Fuel pressure regulators play a key role in maintaining consistent fueling under varying engine loads. This kit allows builders to properly control fuel pressure in modified fuel systems, helping support stable operation during spirited driving and performance-oriented use. The COBB Fuel Pressure Regulator Kit is commonly paired with upgraded fuel pumps, fuel rails, and injectors as part of a complete fuel delivery solution. Recommended Supporting Fuel Components Fuel Pumps – ensure adequate fuel supply and stable pressure when upgrading the fuel system. Fuel Injectors – commonly upgraded alongside regulators to support increased fuel flow and power goals. Fuel Rails – help maintain balanced fuel distribution across injectors in higher-flow setups. Fuel Delivery Components – explore complete fuel system upgrades designed to work together. 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.
