Cobb Subaru Fuel Pressure Sensor Kit (5 Pin) STI 2008-2021

Part Details:

The COBB Fuel Pressure Sensor Kit is designed to provide accurate fuel pressure monitoring for Subaru WRX and STI models. This sensor kit integrates directly into compatible Subaru fuel systems and is commonly used in vehicles with upgraded fuel delivery components.

Utilizing OEM-quality connectors and a factory-style 5-pin fuel pressure sensor, this kit allows for clean installation and reliable signal output. Monitoring fuel pressure is an important part of validating fuel system performance, particularly in modified applications.

Application & Compatibility

• Subaru WRX (2008–2014)
• Subaru STI (2008–2021)

Features & Specifications

• 5-pin fuel pressure sensor configuration
• OEM-quality electrical connectors
• Billet aluminum sensor adapter
• 0–100 PSI fuel pressure sensor
• 1/8″ NPT sensor port
• Designed for Subaru fuel systems

Purpose & Use

Fuel pressure sensors allow builders and drivers to verify that the fuel system is maintaining stable pressure under varying load conditions. This is especially useful when running upgraded fuel pumps, larger injectors, or ethanol-capable fuel systems.

This sensor kit is required for use with COBB NexGen Flex Fuel OTS maps and is commonly paired with other fuel system upgrades 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