Cobb In-Tank 4.5 bar Fuel Pressure Regulator Kit 2022-2025 WRX /2022-2025 BRZ / 2022-2025 GR86 / 2020-2025 Outback XT and Wilderness / 2019-2025 Ascent / 2020-2025 Legacy

The COBB In-Tank 4.5 Bar Fuel Pressure Regulator is a straightforward yet highly effective upgrade for your  fuel system. By increasing pressure on the low-pressure side of the system, it helps prevent cavitation when your High Pressure Fuel Pump (HPFP) is producing maximum flow, ensuring consistent fuel delivery under demanding conditions.

Features

• Direct replacement for the factory regulator
• Increases fuel pressure to 4.5 bar
• Supports E85 and high-ethanol fuels
• Compatible with stock tune and COBB OTS maps
• Simple, plug-and-play installation for reliable performance

Fits:

• WRX 2022–2025
• Outback XT 2020–2025
• Outback Wilderness 2022–2025
  
• Ascent 2019–2025
• Legacy 2020–2025
• BRZ 2022-2025
• GR86 2022-2025

Installation Instructions