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N55 DS15 HPFP UPGRADE

N55 DS15 HPFP UPGRADE

$1,150.00 USD
$1,150.00 USD
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Dorch Engineering DS15-250 HPFP Kit

For BMW N55 Engines | Up to +49% More Fueling with Lift Kit

Introducing our newest generation of high-pressure fuel pumps: the DS15-250, the evolution of our renowned DS1 “Stage 1” pump. This all-new “Stage 1.5” HPFP is completely re-engineered inside and out to offer unmatched reliability, plug-and-play installation, and substantial fueling gains — all controlled by your OEM DME.

🔧 What’s New in the DS15?

  • Increased Pressure: Now supports 250 bar operating pressure

  • Redesigned internals: Reworked pressure chamber, spring rates, plunger depth, and overall volumetric efficiency

  • Optimized packaging: Improved external layout for cleaner hose routing and easier installs

  • Better performance: Up to 750whp on gasoline / 610whp on E85 when paired with our Lift Kit

📈 Performance Specifications

Setup DS15-250 DS15-250 + 38% N55 Lift Kit DS15-250 + 49% N55 Lift Kit
Gasoline Flow Capacity 550whp 700whp 750whp
E85 Flow Capacity 400whp 560whp 610whp
Operating Pressure 250 Bar 250 Bar 250 Bar

🧠 Tuning Requirements

  • Software required: Bootmod3 or MHD

  • Just check the box for Dorch HPFP when flashing

  • For custom tunes, send your .BIN file to: tuning@dorchengineering.com for WinOLS support

💡 Why Choose Dorch?

  • ✅ True Plug-and-Play: No cutting, bending, or crimping required

  • ✅ OEM-Level Fitment: Includes high-quality 250 bar hardline for a clean install

  • ✅ Lifetime Warranty: Built to last — and backed for life

  • ✅ Unrivaled Support: 24/7 expert help from engineers and tuners

  • ✅ Dedicated Calibration Team: OEM tools and files developed in-house for consistent results

📦 Kit Contents

  • DS15-250 High-Pressure Fuel Pump (HPFP)

  • HPFP Hardware & Mounting Kit

  • High-Pressure Fuel Line (250 bar rated)

  • PTFE Low-Pressure Line

  • LPFP Hose Bracket

  • Plug-and-Play Electrical Adapter

  • Backed by Dorch Lifetime Warranty

🚗 Vehicle Fitment — BMW N55 Engines

✅ F-Chassis (with Bosch HPFP)

  • F87 – M2

  • F20/21 – 135i, 135xi

  • F22/23 – 235i, 235xi

  • F30/31/34 – 335i, 335xi

  • F32/33/36 – 435i, 435xi

  • F10/11 – 535i, 535xi*

  • F25/26 – X3/X4 35i*

  • F15/16 – X5/X6 35i

✅ E-Chassis (2013+ models with Bosch HPFP only)

  • E8X – 135i*

  • E9X – 335i*

  • E84 – X1 35i*

  • E70/71 – X5/X6 35i*

⚠️ Not compatible with 2011–2012 N55 vehicles. Must be equipped with OEM Bosch HPFP.

🏁 Upgrade Path Available

Want more? Pair this with the N55 Lift Kit (+38% or +49%) and S63 EU5 injectors for up to 750whp gasoline / 610whp E85 — no port injection required.

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