Dorch Engineering B58 Gen1 DS25 HPFP Upgrade

OVERVIEW

The most reliable and highest-flowing Gen1 B58 pump on the market just got even more reliable and higher-flowing. The DS25 is designed to run efficiently all the way up to 250 bar to maximize the flow potential of upgraded DI injectors. This is a complete plug-and-play kit — no cutting, no bending, no crimping. It drops right in with full control from the DME, just like the OEM pump.

SPECS

• Higher flow than the DS15, running efficiently up to 250 bar
• 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
• In-house calibration engineer develops all HPFP tuning files, with a global tuning network for support

PARTS INCLUDED

• 1x DS25 high-pressure fuel pump (fitment per variant)
• 250 bar capacity hardline

TECH RESOURCES

• Software changes are required — check the box for the Dorch pump upgrade in Bootmod3, MHD, or MG Flasher, or send your .BIN file to Dorch for WinOLS implementation
• Gen1 B58 only, up to 2019 model year — not compatible with 2020+ B58 (Gen2) vehicles

PART NUMBER

• 1-4 Series fitment: DE-581-25A
• 5-7 Series fitment: DE-581-25B
• X3/X4 fitment: DE-581-25C

VEHICLE APPLICATIONS