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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.
FEATURES
- Direct Replacement of Factory Regulator
- 4.5 Bar Fuel Pressure
- Supports E85 Fuel
- Compatible with stock tune & COBB OTS Maps
| Year Fitments | Subaru WRX | Subaru BRZ | |
|---|---|---|---|
| 2022 | ✓ | ✓ | |
| 2023 | ✓ | ✓ | |
| 2024 | ✓ | ✓ |
WARNING: Operating, servicing and maintaining a passenger vehicle or off-road vehicle can expose you to chemicals including engine exhaust, carbon monoxide, phthalates, and lead, which are known to the State of California to cause cancer and birth defects or other reproductive harm. To minimize exposure, avoid breathing exhaust, do not idle the engine except as necessary, service your vehicle in a well-ventilated area and wear gloves or wash your hands frequently when servicing your vehicle. For more information go to P65Warnings
| SKU | 346750 |
|---|---|
| Manufacturer's Part Number | 346750 |
| Brand | COBB |






