Part Number: 346750

Description: Cobb In-Tank 4.5 bar Fuel Pressure Regulator Kit

Fitment: 22+ Subaru WRX VB

Notes: Not for sale in California not CARB Legal

Details:

Emissions

50 State Legal.

This part is legal for sale and use on Emissions Controlled Vehicles in all 50 states when used in accordance with the manufacturer's application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number:

D-660-304
D-660-338

Description

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.

Note for 2026 WRX USDM: This product is not available for sale in California at this time. Stay Tuned as we work towards CARB approved 50-State status.

Why?

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.

Features

Subaru/Toyota In-Tank 4.5 bar Fuel Pressure Regulator Kit WRX 2022-2026, Outback XT 2020-2026, Outback Wilderness 2022-2026, Ascent 2019-2026, Legacy 2020-2025, BRZ 2022-2025, GR86 2022-2025

• Direct Replacement of Factory Regulator

• 4.5 Bar Fuel Pressure

• Supports E85 Fuel

• Compatible with stock tune & COBB OTS Maps