Raceworks Fuel Pump MRA Module Reservoir Assembly w/Steel Weld RingRaceworks Steel Tank VX Commodore MRA Conversion Kit (Returnless). Raceworks Module Reservoir Assembly Conversion Kits, allow a modern EFI Fuel Pump module to be retrofitted to an older factory or custom made fuel tank. This provides a simple solution when doing EFI conversions on older vehicles. As part of the MRA, you get a swirl pot, pump, level sender and in some cases a Fuel Pressure Regulator. The kits come with rings that you bolt or weld to