Fuel Pressure Regulator Kit

The COBB Fuel Pressure Regulator Kit is engineered to resolve the notorious 2800 rpm stumble experienced in 2008-2021 Subaru WRX STI vehicles, ensuring seamless integration with the factory fuel system. By enhancing fuel delivery, this kit provides a noticeably smoother throttle response and superior drivability, making it an essential upgrade for STI owners seeking refined performance without complex modifications. The kit features genuine OEM Subaru fuel regulator components, Dorman quick connect fuel fittings, and is protected by abrasion-resistant sheathing for enhanced longevity. This regulator is compatible with flex fuel and supports COBB's Stage 3 Off-The-Shelf (OTS) maps. For other configurations, custom tuning is recommended to optimize performance and ensure system stability. Ideal for Subaru WRX STI owners aiming to optimize fuel pressure and eliminate hesitation, this kit offers dependable performance improvements. Upgrade your fuel system with confidence and experience a more responsive and enjoyable driving experience.