Radium Engineering BMW E46 M3 (S54) Fuel Rail Kit (Does Not Include Hose or Fittings)

Radium Engineering Fuel Rail Kit – BMW B58

Upgrade your fueling system with the Radium Fuel Rail Kit, precision CNC machined from solid 6061 aluminum and finished with a sleek black anodized coating for durability and corrosion resistance. Engineered for high-performance applications, this fuel rail is compatible with all fuel types—including ethanol blends like E85—and is designed to support even the most demanding builds.

Key Features:

• Premium Construction: Solid 6061 aluminum with black anodized finish for corrosion resistance and OEM+ appearance

• Fuel Compatibility: Works with gasoline, race fuel, and ethanol blends (E85 safe)

• Pulse Damper Ready: First and only B58 fuel rail designed to support an optional fuel pulsation damper for pressure stability

• Enhanced Fuel Pressure Control: Helps reduce pressure spikes caused by injector pulses—especially beneficial with high-flow injectors

• Improved Idle Quality: Stabilized fuel pressure reduces surging idle and promotes consistent performance across the RPM range

• Direct Fit: Designed for easy installation on the BMW B58 engine, with OEM mounting points

For best results and maximum fuel pressure stability, we recommend pairing with Radium’s optional Fuel Pulsation Damper.