The Radium Engineering Fuel Hanger Surge Tank for the BMW E90/E91/E92/E93 3-Series (N54/N55) is a drop-in surge tank that installs inside the factory fuel tank, opposite the OE pump, to eliminate fuel starvation during hard driving and support high-horsepower pump upgrades. It holds one or two high-flow aftermarket pumps and can be configured as a built-in-regulator deadhead system or converted to a return-style setup. E85-compatible. Pump not included.
| Product | Fuel Hanger Surge Tank (Regulated) |
| Pump Capacity | 1-2 high-flow pumps |
| Regulator | Built-in (deadhead; convertible to return) |
| Fuel Compatibility | Gasoline / E85 |
| Application | BMW E90/E91/E92/E93 3-Series (N54/N55) |
| Pump Included | No |
| Part Number | 20-1972 |
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Returns: 30-day returns on new, unused items in original packaging. See the full Refund Policy.
