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Dorch Engineering N55 DS15 HPFP Upgrade
Dorch Engineering N55 DS15 HPFP Upgrade is a high-pressure fuel pump upgrade for BMW N55 engines, offered in two harness versions to match the vehicle's production date. The Old Style Harness fits cars built before 12/2013, while the New Style Harness fits cars built from 12/2013 onward, so the correct plug-and-play connection is available for either configuration.
This upgrade replaces the factory high-pressure fuel pump to support higher fuel flow for tuned or modified N55 engines. It is a direct-fit component for the BMW N55 platform, and the harness version must be selected based on the vehicle's production date to ensure proper installation.
Key Features
| Brand | Dorch Engineering |
| Product Type | High-Pressure Fuel Pump Upgrade |
| Compatibility | BMW N55 engines |
| Harness Version | Old Style Harness (Pre-12/2013) / New Style Harness (12/2013+) |
| Fitment | Direct replacement |
Compatibility
Fits BMW N55 engines. Choose the harness version based on your vehicle's production date: Old Style Harness for cars built before 12/2013, New Style Harness for cars built from 12/2013 onward.
Frequently asked questions
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