Radium Engineering BMW E9x 3-Series (N54/N55) Fuel Surge Tank Regulated (Pump Not Included)

The Radium Engineering BMW E9x 3-Series (N54/N55) Fuel Surge Tank Regulated is a high-quality billet fuel pump hanger designed for direct installation in BMW E9x models and similar vehicles. It serves as a surge tank and pressure regulator, providing a stable fuel supply for enhanced performance. The unit can accommodate up to two aftermarket fuel pumps, offering flexibility for various tuning setups. Included features such as a collector box and a built-in pressure regulator ensure consistent fuel pressure and improved reliability. The regulator can be bypassed to convert the system into a full return-style configuration with an engine bay mounted regulator, allowing customization based on specific performance needs. Compatibility with the Walbro "450" fuel pumps makes it suitable for high-flow applications, supporting both street and track use.

This surge tank assembly is designed for BMW E9x chassis vehicles equipped with N54 or N55 engines, covering model years from 2007 to 2013. It is a bolt-in replacement that enhances fuel system capacity and stability, ideal for modified or high-performance builds. The kit does not include fuel pumps, which are sold separately, and is compatible with aftermarket fuel pump options. Its robust construction and precise engineering make it suitable for street, track, or racing applications where reliable fuel delivery is critical. Installation involves replacing the stock fuel pump hanger with this billet unit, providing a secure and durable upgrade for demanding driving conditions.