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The Radium Engineering fuel hanger is a BMW E9x surge-tank feed assembly that mounts inside the OEM fuel tank. The factory in-tank pump serves as a lift pump to feed the surge tank, while dedicated surge pumps then supply the engine. This arrangement increases pump capacity and helps protect against fuel starvation in demanding driving conditions where additional feed reliability is required.
Radium Engineering BMW E9x Fuel Hanger Feed w. Stainless Filter
