The Precision Raceworks BMW F Series N20 / N26 / N55 High-Performance Fuel Pump is a complete, plug-and-play low-pressure fuel system upgrade built for serious street and track applications. Designed for BMW F Series models running N20, N26, and N55 engines, this system delivers consistent, high-flow fueling and full compatibility with all ethanol blends, including E85. Depending on configuration, it can support builds from mild upgrades right through to 1,000+ wheel horsepower.

Each unit is supplied as a fully assembled replacement, featuring a brand-new OEM fuel pump bucket, high-performance Walbro fuel pumps, new fuel filters, and a new sending unit. No core exchange, cutting, or modification is required—simply install and benefit from improved fuel pressure stability, sharper throttle response, and reliable fueling at high load.

HIGH-PERFORMANCE FUEL DELIVERY, SIMPLIFIED

BMW’s factory fuel system can struggle under increased boost or ethanol use. Precision Raceworks systems are engineered to maintain consistent fuel pressure in demanding conditions, ensuring the primary pump remains submerged during hard acceleration, cornering, and track use. Each stage is calibrated to match specific power goals while retaining OEM-level fitment and reliability.

STAGE OPTIONS & SPECIFICATIONS

Stage 2 – 2.2 LPM

• Single Walbro 450 (F90000274) fuel pump
• Supports up to 575 WHP (500 WHP on full E85)
• Fully drop-in installation with no wiring required
• Ideal for high-performance street and light track builds

Stage 2.5v2 – 3.5 LPM

• Single Walbro 535 (F90000295) fuel pump
• Supports up to 675 WHP (600 WHP on full E85)
• OEM-level fitment and straightforward installation
• Well suited to higher ethanol content and boost levels

Stage 3 – 5.0 LPM

• Dual Walbro 450 pump configuration
• Supports up to 850 WHP (800 WHP on full E85)
• Includes boost-reference harness and Hobbs switch for secondary pump activation
• Designed for aggressive street and track-focused builds

Stage 3.5 – 6.0 LPM

• Hybrid dual-pump system (Walbro 450 + Walbro 525)
• Supports up to 950 WHP (875 WHP on full E85)
• Includes harness and 13 psi Hobbs switch
• Ideal for high-boost ethanol applications

Stage 3.75 – 6.5 LPM

• Ultimate dual-pump setup (Walbro 535 + Walbro 525)
• Supports 1,000+ WHP (950 WHP on full E85)
• Drop-in fitment with no wiring modifications
• Built for extreme, high-horsepower ethanol builds

KEY FEATURES & BENEFITS

• 100% E85 compatible
• Fully assembled, drop-in replacement
• OEM fitment with race-proven fueling capacity
• Prevents fuel pressure drop and starvation under load
• New OEM bucket, filters, and sending unit included
• Wide power support range from 500 to 1,000+ WHP
• Suitable for DIY or professional installation

COMPATIBILITY

• BMW 2 Series: 228i, 228i xDrive, M235i, M235i xDrive (2014–2016)
• BMW 3 Series: 320i, 328i, 335i & xDrive variants (2012–2018)
• BMW 4 Series: 428i, 435i & Gran Coupé variants (2014–2016)
• BMW F87 M2 (2016–2018)

Compatible with all N20, N26, and N55 engines.

WHY CHOOSE PRECISION RACEWORKS?

Precision Raceworks is trusted worldwide for producing reliable, plug-and-play fueling solutions that deliver consistent results. Developed through extensive real-world testing, these systems provide dependable fueling on both pump fuel and ethanol blends—making them the ideal foundation for anything from fast-road builds to four-figure horsepower projects.