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The COBB In-Tank 4.5 bar Fuel Pressure Regulator is a simple modification that greatly increases the capability of your cars fuel system. Increasing pressure in the low pressure side of the system helps to mitigate cavitation when your car's High Pressure Fuel Pump (HPFP) is producing maximum flow.
Upgrading the in-tank fuel pressure regulator can help to prevent cavitation at your car's High Pressure Fuel Pump. The COBB regulator increases pressure to 4.5 bar, suitable for most applications.
Fits:
2022+ WRX
2022+ BRZ/86
2020+ Outback XT/Wilderness
2020-2025 Legacy XT
2019+ Ascent
