Gauntlet HPFP Upgrade for B58 Gen 1

The Precision Raceworks B58 Gen 1 Gauntlet HPFP Upgrade is engineered to push the limits of your B58 Gen 1 engine. This cutting-edge pump offers a substantial increase in fuel flow, delivering 70% more fuel compared to the stock pump and exceeding the flow of previous high-performance options by 4%. It supports up to 240 bar of fuel rail pressure, making it ideal for enthusiasts seeking top-tier performance. The Gauntlet HPFP boasts a robust cast stainless steel construction, ensuring a compact yet durable design. The comprehensive installation kit includes a high-capacity HPFP, stainless steel high-pressure outlet tube, low-pressure inlet tube with Teflon internals, flange alignment tool, electrical harness adapter, and all necessary hardware. A color installation guide and serialized pump flow test data are also provided. This high-pressure fuel pump supports significant power potential, rated for 1022 WHP on gasoline and 730 WHP on E85. It is compatible with the largest injectors on the market, enabling maximum direct injection power. The pump has undergone rigorous testing, including computational fluid dynamics analysis, kinematic and structural testing, and over 120 hours of dynamic testing, with successful real-world driving validation over 60,000 miles. Tuning is required after installation, with recommended suites including EcuTek, BM3, and MHD. Vehicle fitment and tuning are guaranteed for North America Spec vehicles. The pump is compatible with B58 Gen 1 Engines, specifically listed for BMW 3 Series (F30/F31/F34 340i & 340i xDrive 2012-2019), BMW 4 Series (F32/F33/F36 440i 2014-2019), and BMW 7 Series (G11/G12 740i 2016+).