DORCH | B58 Gen 2 HPFP Upgrade DS25 / DS3 (Stage 2.5 / Stage 3)

Unlock the Full Potential of Your BMW B58 Gen 2

Take your build beyond factory fueling limits with the Dorch DS25 (Stage 2.5) and DS3 (Stage 3) High Pressure Fuel Pump (HPFP) upgrades—engineered specifically for the BMW B58 Gen 2 platform. Developed by the pioneers of direct-injection fueling upgrades, these next-generation pumps deliver industry-leading flow, OEM-level integration, and unmatched reliability.

Whether you're chasing a reliable street setup or 4-digit horsepower, the DS25 and DS30 provide scalable fueling solutions without compromising drivability or safety.

🚀 Why Upgrade Your HPFP?

The factory HPFP becomes a bottleneck as power increases—especially on ethanol blends. Upgrading to a high-performance HPFP allows you to:

• Support significantly higher horsepower & torque
• Run E85 / ethanol blends safely
• Maintain stable fuel pressure under boost
• Enable larger turbos & aggressive tuning
• Preserve OEM drivability and DME control

In short: more fuel = more power, safely.

⚙️ DS25 vs DS3 – What’s the Difference?

🔧 DS25 (Stage 2.5) – Performance Street & Hybrid Turbo Builds

• Up to 770whp (gas) / 560whp (E85)
• With upgraded cam: 950whp (gas) / 710whp (E85)
• Ideal for hybrid turbos, daily drivers, and strong street builds
• Excellent pairing with OEM+ injector setups (e.g. S58 injectors)

🔥 DS3 (Stage 3) – Maximum Flow & Big Power Builds

• Up to 950whp (gas) / 700whp (E85)
• With upgraded cam: 1150whp (gas) / 870whp (E85)
• ~20% more fueling capacity than DS25
• Designed for big turbo & high ethanol builds
• Requires larger injectors for full potential

👉 Summary:

• Choose DS25 for powerful, responsive street setups
• Choose DS3 for maximum fueling capacity and extreme horsepower goals

🧠 Advanced Engineering – 350 Bar Performance

Both pumps feature a completely redesigned internal architecture, including:

• Optimized plunger geometry & depth
• Revised spring rates
• Increased volumetric efficiency
• 350 bar operating pressure (Gen 2 B58 optimized)

Result: consistent, reliable fueling at power levels the OEM system simply cannot support.

🔌 True Plug & Play – OEM Integration

Unlike other aftermarket solutions, Dorch delivers a 100% plug-and-play HPFP upgrade:

• ✅ No cutting, bending, or modifications
• ✅ Includes 350 bar high-pressure hardline
• ✅ Full DME control retained
• ✅ OEM-level safety systems remain active

This is the only true OEM-fit HPFP upgrade available for the B58 Gen 2.

💻 Tuning Requirements

To run the DS25 or DS3, software calibration is required:

• Bootmod3 / MHD: Select HPFP upgrade option (supported)
• Custom tuning support via submission of your .BIN file to tuning@dorchengineering.com for the appropriate software implementation via WinOLS.

🛡️ Why Choose Dorch Engineering?

• Lifetime Warranty – Built to last, backed for life
• 24/7 Expert Support – Direct access to engineers & tuners
• In-House Calibration – OEM-level tuning development
• Global Tuning Network – Proven results worldwide

📦 What’s Included

• Dorch HPFP (DS25 or DS3) with hardware
• 350 bar high-pressure fuel line
• PTFE low-pressure line
• Low-pressure hose bracket
• Plug & play adapter harness
• Installation instructions

🚗 Vehicle Compatibility (B58 Gen 2 Only)

Compatible with a wide range of BMW & Toyota platforms, including:

• Toyota Supra A90/A91
• BMW M340i / M440i / M240i / Z4 M40i
• 540i / 640i / 740i / 840i
• X3 M40i / X4 M40i / X5 40i / X6 40i / X7 40i

(Gen 2 B58 models only)

🏁 Build Smarter. Go Faster.

Whether you're pushing the limits of a hybrid turbo setup or building a full ethanol, big turbo monster, the Dorch DS25 and DS3 HPFP upgrades provide the fueling backbone your B58 needs.

No compromises. No shortcuts. Just proven performance.