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The Dinan Power Control Unit (PCU) is an evolutionary step in Dinan in-line tuning modules, built on more than a decade of lessons learned in the category. At its core, the PCU is similar to its predecessors: it installs between select sensors and the ECU, adjusting signals to achieve increased performance beyond what stock programming can provide. What sets the PCU apart, however, is its integration beyond the fundamental boost sensors to include additional connections—OBD-II included. The result is a more capable system that can do far more than simply increase power. Live monitoring of vehicle health via logging, customizable gauges, and code reading/clearing (among other features) are now possible, ensuring a seamless tuning experience that even a novice can feel comfortable with. The Dinan PCU is controlled by a free Bluetooth app, available for both iOS and Android, and serves as the hub for all of the device’s powerful features. Equipped with five different pre-set performance levels (in addition to Stock), you can select your desired output and enjoy more power with a true “install-and-forget” experience—or you can dive into the advanced features at your fingertips. Boost-by-gear customization, for example, allows you to limit power delivery in lower gears to ensure optimum traction and a perfect launch. Where the PCU truly shines, however, is in data acquisition and monitoring, providing insight into the vehicle’s overall health and helping ensure your tuned vehicle is always running at peak potential. Safety and reliability have been cornerstones of the Dinan brand for generations. Not only does the Dinan PCU preserve factory safeguards and emissions controls, it incorporates its own protective strategies as well. Going one step further, the PCU also gives the end user the ability to monitor up to 20 different engine parameters in real time via customizable in-app gauges—helping verify worry-free operation. Those same parameters can also be logged and reviewed in the app (or exported to CSV) for further scrutiny, if desired. All told, a true Dinan product developed wholly from the ground up; engineered, calibrated, and made in America—this is not the competition’s product.
Dinan Dinan PCU - BMW B58 Gen 3 Engine (TU2) D440-0201
Specifications:
| Brand | Dinan |
| Category | Air and Fuel Delivery |
| Emission Code | 7 |
| part type | Fuel Injection Calibration Module |
| Product Type | Inline Module |
| Sub Category | Fuel Injection System and Related Components |
| Warning | California Proposition 65 |
| Description_ABR | DINAN PCU |
| Description_SHO | DINAN PCU |
| Description_INV | DINAN PCU B58 GEN3 |
| Description_DES | Dinan PCU - BMW B58 Gen 3 Engine (TU2) |
| Description_EXT | Vehicle Fitments: 2025-2026 M340i, 2025-2026 M440i, 2024-2026 540i, 2023-2026 740i, 2025-2026 X3 M50i, 2024-2026 X5 40i, 2024-2026 X6 40i, 2023-2026 X7 40i |
| Description_MKT | The Dinan Power Control Unit (PCU) is an evolutionary step in Dinan in-line tuning modules, built on more than a decade of lessons learned in the category. At its core, the PCU is similar to its predecessors: it installs between select sensors and the ECU, adjusting signals to achieve increased performance beyond what stock programming can provide. What sets the PCU apart, however, is its integration beyond the fundamental boost sensors to include additional connections—OBD-II included. The result is a more capable system that can do far more than simply increase power. Live monitoring of vehicle health via logging, customizable gauges, and code reading/clearing (among other features) are now possible, ensuring a seamless tuning experience that even a novice can feel comfortable with. The Dinan PCU is controlled by a free Bluetooth app, available for both iOS and Android, and serves as the hub for all of the device’s powerful features. Equipped with five different pre-set performance levels (in addition to Stock), you can select your desired output and enjoy more power with a true “install-and-forget” experience—or you can dive into the advanced features at your fingertips. Boost-by-gear customization, for example, allows you to limit power delivery in lower gears to ensure optimum traction and a perfect launch. Where the PCU truly shines, however, is in data acquisition and monitoring, providing insight into the vehicle’s overall health and helping ensure your tuned vehicle is always running at peak potential. Safety and reliability have been cornerstones of the Dinan brand for generations. Not only does the Dinan PCU preserve factory safeguards and emissions controls, it incorporates its own protective strategies as well. Going one step further, the PCU also gives the end user the ability to monitor up to 20 different engine parameters in real time via customizable in-app gauges—helping verify worry-free operation. Those same parameters can also be logged and reviewed in the app (or exported to CSV) for further scrutiny, if desired. All told, a true Dinan product developed wholly from the ground up; engineered, calibrated, and made in America—this is not the competition’s product. |
| Description_FAB | Up to +54 HP and +66 LB-FT at the wheel (on Premium Fuel) Bluetooth connectivity and control via free iOS or Android PCU apps Multiple power levels, plus stock, to choose from Designed for peak performance utilizing pump gas fueling, 91 octane tuning (levels 1-3), and 93 octane tuning (Levels 4-5) Improves power and torque across the entire RPM range Customizable in-app gauges Real-time logging up to 20 (16 max at one time) parameters courtesy of CAN/OBDII integration and the supplied PCU app Logs can be viewed directly in the PCU app or exported/emailed as a CSV file for more detailed scrutiny Boost by gear user customization to reduce unwanted wheel spin in lower gears Read and clear fault codes as well as check emissions readiness Retains all factory safeguards and works flawlessly with onboard emissions controls Unaffected by factory updates Plug-and-play installation Unplug and go back to stock at any time or transfer the unit (Not VIN locked) Designed, developed and manufactured entirely in the USA Available with a factory-matching 4-YR, 50,000 mile Dinan warranty (D440-0201-W) or a 2-YR, unlimited mileage product warranty (D440-0201) |
This Part Fits:
| Year | Make | Model | Submodel | Notes |
|---|---|---|---|---|
| 2025 | BMW | 540i xDrive | ||
| 2026 | BMW | 540i xDrive | ||
| 2027 | BMW | 540i xDrive | ||
| 2025 | BMW | 740i xDrive | ||
| 2026 | BMW | 740i xDrive | ||
| 2025 | BMW | M340i | ||
| 2026 | BMW | M340i | ||
| 2025 | BMW | M340i xDrive | ||
| 2026 | BMW | M340i xDrive | ||
| 2025 | BMW | M440i | ||
| 2026 | BMW | M440i | ||
| 2027 | BMW | M440i | ||
| 2025 | BMW | M440i Gran Coupe | ||
| 2026 | BMW | M440i Gran Coupe | ||
| 2027 | BMW | M440i Gran Coupe | ||
| 2025 | BMW | M440i xDrive Gran Coupe | ||
| 2026 | BMW | M440i xDrive Gran Coupe | ||
| 2027 | BMW | M440i xDrive Gran Coupe | ||
| 2025 | BMW | X3 | M50 xDrive | |
| 2026 | BMW | X3 | M50 xDrive | |
| 2027 | BMW | X3 | M50 xDrive | |
| 2025 | BMW | X3 | M50i | |
| 2026 | BMW | X3 | M50i | |
| 2024 | BMW | X5 | sDrive40i | |
| 2025 | BMW | X5 | sDrive40i | |
| 2026 | BMW | X5 | sDrive40i | |
| 2024 | BMW | X5 | xDrive40i | |
| 2025 | BMW | X5 | xDrive40i | |
| 2026 | BMW | X5 | xDrive40i | |
| 2024 | BMW | X5 | xDrive40i Adapted Plus | |
| 2025 | BMW | X5 | xDrive40i Adapted Plus | |
| 2026 | BMW | X5 | xDrive40i Adapted Plus | |
| 2024 | BMW | X5 | xDrive40i Protection | |
| 2024 | BMW | X6 | xDrive40i | |
| 2025 | BMW | X6 | xDrive40i | |
| 2026 | BMW | X6 | xDrive40i | |
| 2027 | BMW | X6 | xDrive40i | |
| 2024 | BMW | X6 | xDrive40i M Sport | |
| 2025 | BMW | X6 | xDrive40i M Sport | |
| 2026 | BMW | X6 | xDrive40i M Sport | |
| 2027 | BMW | X6 | xDrive40i M Sport | |
| 2023 | BMW | X7 | xDrive40i | |
| 2024 | BMW | X7 | xDrive40i | |
| 2025 | BMW | X7 | xDrive40i | |
| 2026 | BMW | X7 | xDrive40i | |
| 2027 | BMW | X7 | xDrive40i |
