S55 LIFT KIT-HPFP UPGRADE

Dorch S55 HPFP Lift Kit – Game-Changing OEM Upgrade

38% More Fuel Flow with OEM Reliability & No Tuning Required

We’re proud to offer an unmatched, revolutionary upgrade for the BMW S55 engine platform! Instead of relying on standard high-pressure fuel pump (HPFP) upgrades, we engineered a solution from the ground up that delivers 38% more fuel flow directly from the OEM HPFP assembly—without any of the hassle or expense of traditional upgrades.

🔧 How It Works

• Utilizes Genuine BMW vacuum pump cores with our proprietary Dorch Engineering Cam installed inside the OEM pump housing.

• The S55’s Bosch fuel pump cams are among the smallest in the lineup, enabling increased fuel flow while preserving factory-level reliability and longevity.

• Completely plug-and-play—no cutting, bending, crimping, or complex plumbing required.

• Maintains full OEM DME control and safety features; no special or custom tuning needed to get started.

• Emissions-friendly: The only HPFP upgrade on the market that reliably passes emissions testing on OEM DME maps.

⚙️ Flow Capacities

* 800whp represents practical limits with currently available upgraded injectors.

🚨 Important Notes

• No software changes required to use this kit, but we offer optimized maps for Bootmod3 and MHD for those who want to maximize performance. Just select the “Lift Kit” option when flashing.

• The S55 fuel system is injector-limited. To fully unlock this upgrade’s potential, pairing with larger S63 EU5 Injectors is highly recommended — proven to support up to 800whp on E85.

📦 Kit Contents

• Dorch Lifetime Warranty

• Dorch Vacuum Pump Assembly with proprietary cam

• Vacuum Pump Sealing Cap

• Vacuum Pump Gasket

🚗 Vehicle Fitment

• F80 M3 – All Variants

• F82 M4 – All Variants

• F87 M2 – Competition, CS ONLY

🛠️ Installation

• Simple drop-in replacement of OEM vacuum pump assembly.

• Installation instructions included: S55_HPFP_LK_Installation.pdf

This upgrade is the best value and highest flowing HPFP solution for S55 owners aiming to push their builds to the next level, all while maintaining OEM reliability and compliance.