BMW E-Chassis Dual Walbro Stage 4 LPFP Upgrade Kit for the N54 and N55 Motors –
- Most powerful LPFP upgrade for over 600whp with dropping pressures
- Utilizes OEM stock bucket while bypassing factory restrictions for higher pressures and flows
- Includes two Walbro 450 E85 pumps, custom ethanol filter assembly, and -6an fuel lines
- Components: New OEM bucket, Walbro pumps, ethanol filter, wiring harness, etc
- Requires Fuel-It! or Phoenix Racing port injection kit and external fuel pressure regulator upgrade
- Optional upgrade to Walbro 525 pumps available
- Compatible with certain BMW models: E-series N54 and E-series N55
- Supports accessories like Lock Ring Removal Tool, Hobb’s Switch, and Flex Fuel Kit
– R 33407