Dorch Engineering B58 Gen1 DS3 HPFP Upgrade

OVERVIEW

After significant R&D, Dorch is proud to release the highest-flowing single-pump solution on the market for Gen1 B58: the DS3 (Dorch Stage 3). This is the largest bore size and highest-flowing pump to date, supporting incredible power with just a simple HPFP swap — with 20% more fueling gains than the DS25. It uses OEM hose routing for zero interference when changing coil packs or spark plugs. No cutting, no bending, no crimping — this kit drops right in with full control from the DME, just like factory.

SPECS

• Flow potential: 860whp gasoline / 725whp E50 / 630whp E85
• With +40% cam upgrade: 1150whp gasoline / 1000whp E50 / 870whp E85
• Operating pressure: 250 bar
• Combine with Dorch injectors and a cam solution for never-before-seen 4-digit direct-injection power
• Plug and play — the only true plug-and-play OEM fitment option on the market
• Includes a 250 bar capacity hardline for direct connection to your fuel rail — no bending or damaging the OEM line
• Lifetime warranty

PARTS INCLUDED

• 1x DS3 high-pressure fuel pump (fitment per variant)
• 250 bar capacity hardline

TECH RESOURCES

• Software changes are required to run this pump — check the box for the Dorch pump upgrade in Bootmod3, MHD, or MG Flasher, or send your .BIN file to Dorch for WinOLS implementation
• Enter your VIN when ordering to ensure the correct adapter kit is included
• Gen1 B58 only, up to 2019 model year — not compatible with 2020+ B58 (Gen2) vehicles
• 24/7 customer support from professional engineers, technicians, and Dorch's in-house tuner

PART NUMBER

• 1-4 Series fitment: DE-581-30A
• 5-7 Series fitment: DE-581-30B
• X3/X4 fitment: DE-581-30C

VEHICLE APPLICATIONS