Precision Raceworks B58 Upgraded Hybrid Fuel Pump – BMW

OVERVIEW

The B58's factory low-pressure fuel system is a limiting factor once you push past stock power levels — especially on E85 or other high-ethanol blends, which require substantially more volume than pump gas for the same output. The Precision Raceworks Upgraded Hybrid Fuel Pump is a drop-in replacement for the factory in-tank pump, engineered per B58 generation to flow significantly more fuel while protecting the high-pressure pump and injectors downstream with proper filtration.

SPECS

• E85 compatible — rated for all fuel blends including 100% E85
• Includes a 10-micron inline fuel filter to protect the HPFP and direct injectors from contaminants
• G-Series/Supra stages: Stage 1 (OEM+ drop-in, up to 800whp pump gas / 750whp E85), Stage 2 (external Walbro 450, up to 850whp pump gas / 800whp E85), Stage 2.5 (474 LPH @ 5 bar, external Walbro 525, up to 950whp pump gas / 900whp E85)
• F-Series stage: Stage 3 (Walbro 450, up to 900whp pump gas / 850whp E85)
• Drop-in replacement for the factory in-tank pump — no core charge
• True plug-and-play — no wires to cut or splice; keeps the primary pump fully submerged regardless of tank level or g-forces

PARTS INCLUDED

• Walbro fuel pump (spec varies by stage) with wiring and pump activation switch
• New OEM fuel pump bucket assembly (pre-assembled)
• New fuel sending unit and primary/secondary fuel filters
• Performance fuel lines

TECH RESOURCES

• Install guides (F-Series): Setting Fuel Pressure · Pump Activation Harness (201-0049) Install
• Install guides (G-Series/Supra): Stage 2 · Stage 2.5 · Pump Activation Harness (201-0049) v3
• Requires a supporting ECU tune — MHD Super License for B58 (F+G Series)
• Stage 2+ hybrid setups use a PRW billet top hat — F3x/F8x Billet Top Hat (F-Series) or G-Series & Supra Billet Top Hat (G-Series)
• Complete the fueling system: B58 Port Injection Kit, B58 Gen 1 Gauntlet HPFP (F-Series), Solid State Relay Upgrade
• Highest fueling ceiling — step up to the PRW Stand Alone AFS™ by chassis: Supra · X3/X3M · M3/M4/M340i/M440i · M2/M240i
• Some European-spec vehicles may require re-use of the factory top hat due to emissions differences
• Not for sale or use in California on any pollution-controlled vehicle per CARB

PART NUMBER

• 601-0163-b58 (F-Series)
• 601-0292-g2x (G-Series/Supra)

VEHICLE APPLICATIONS