Dorch Stage 2.5 HPFP Upgrade – BMW B58 Gen2 / Toyota GR Supra

OVERVIEW

From the creators of the world's first B58 direct-injection fueling upgrades, the Gen2 DS25 is the 350 bar version of Dorch's DS25 pump — another first in the aftermarket, built for the Gen2 (B58TU) engine.

Internally Dorch reworked the entire pump body, spring rates and plunger depth and optimized the volumetric efficiency of the pump. There is no cutting, no bending and no crimping; the kit drops straight in with full control from the DME, just like the OEM pump, and all of the stock DME's safety strategies remain in place.

Dorch backs the kit with a lifetime warranty, around-the-clock support from working engineers and technicians, and an in-house calibration engineer who develops its HPFP files using OEM calibration tools.

SPECS

• Operating pressure: 350 bar
• Flow capacity, gasoline: 850 whp (1000 whp with the Dorch +27% cam upgrade)
• Flow capacity, E50: 720 whp (900 whp with the Dorch +27% cam upgrade)
• Flow capacity, E85: 620 whp (770 whp with the Dorch +27% cam upgrade)
• Plug-and-play OEM fitment — no cutting, bending or crimping
• Full DME control retained, including all stock DME safety strategies
• Includes a 350 bar capacity hardline to connect the HPFP to the fuel rail, in place of bending the OEM line
• Dorch lifetime warranty
• For Gen2 B58 equipped vehicles only

PARTS INCLUDED

• Dorch lifetime warranty
• HPFP with hardware
• Dorch high pressure line
• PTFE low pressure line
• Low pressure hose bracket
• Plug-and-play adapter harness

TECH RESOURCES

Additional Parts Required

• Software changes are required to run this pump. Dorch is adding a pump-upgrade option to BOOTMOD3 and MHD; until it is listed for your car, send your .BIN file to tuning@dorchengineering.com for the appropriate WinOLS implementation. Compatible platforms we stock: BOOTMOD3 B58 Tune (BMW), BOOTMOD3 B58 Tune (GR Supra), MHD Super License – B58 and MHD Super License – GR Supra.
• ECU unlock is required before a locked B58 DME can be flashed — see our ECU Unlock Service for BMW B58 Engines.
• Higher-flowing direct injection injectors are required to use the pump's full potential. Without the Dorch cam upgrade, Dorch recommends OEM S58 injectors, which flow about 30% more than stock — Contact Speed Logic for availability.
• Optional: the Dorch +27% cam upgrade, required to reach the higher flow figures in SPECS.
• If your car already has an ethanol sensor, choose your chassis fitment and add "ECA HOSES" in the order notes.

Installation

• Dorch B58 Gen2 HPFP Kit Installation Instructions (PDF)

Notes

• 5 Series, 6 Series GT, 7 Series and X3/X4 M40i are covered for Gen2 B58 equipped model years only. Confirm your engine generation with Speed Logic before ordering.

PART NUMBER

• DE-582-25TS — Toyota GR Supra / BMW Z4
• DE-582-25A — BMW 2–4 Series and X3/X4
• DE-582-25B — BMW 5–8 Series and X5–X7

VEHICLE APPLICATIONS