COMPATIBILITY

99-06 BMW E46 3-series
99-06 BMW E46 M3

This kit is not compatible with convertibles

OVERVIEW

This comprehensive installation kit includes everything needed to install a Radium fuel surge tank. The base price is for the installation kit ONLY. The fuel surge tank (FST) is sold separately. It can be using the check boxes to the right.

The BMW install kit locates the FST in a collision-safe area of the trunk behind the rear seat. The bolt-on aluminum mounting bracket features rubber isolating grommets to reduce fuel pump noise. Also included is a weatherproof fuse and relay to drive the new FST fuel pump. A Delphi Weatherpak connector is also provided for the fuel pump trigger activation to make the entire system modular.

PTFE hoses are provided which are cut to length and preassembled. The PTFE hoses mate at a junction point in the trunk using the bulkhead plate and 4 bulkheads fittings for interior aesthetics.

PRODUCT VIDEO

ORDERING

This installation requires purchasing the install kit, the surge tank and the fuel pump for the surge tank separately. Many different fuel pumps can be installed into the surge tank and the available pump options from Radium directly are listed in the check boxes to the right.

To order a complete kit, select the install kit, the surge tank, and one fuel pump. To use a fuel pump other than what is listed, do not select a fuel pump from the checkboxes and order the desired fuel pump from another source.

To see a full list of fuel pumps compatible with the FST, click here.

INSTALLATION NOTES

Depending on the flow rate of the fuel pump installed into the FST, a drop-in fuel pump upgrade may be required in the main tank. The main tank's pump is responsible for keeping the surge tank full, and requires a pump that flows around 40% to 50% of what the surge tank pump flows. This is an estimate and will vary.