DINANFLASH Handheld Tuner - BMW B58(M0) & B46 Engine

F22/F23/F30/F31/F34/F32/F33/F36 G01/G02/G11/G12/G30/G32

Part # 4431
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DINANFLASH Handheld Tuner - BMW B58(M0) & B46 Engine

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This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020.

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Flash tuning meets convenience and versatility with a feature rich handheld device. That's right - the most significant and important performance enhancement available for your turbo charged car is now deliverable from the comfort of your drivers' seat. With multiple octane calibrations dependent on your specific needs, desires or limitations nestled in the palm of your hand you can switch to the appropriate map with the click of a few buttons and a short flash. The main component of the DINANFLASH Handheld is the B58(M0) and 'F' Chassis B46 Dinan performance engine software loaded onto the device which is your ticket to maximum power. Not just any power however - safe, reliable power that does not sacrifice the long-term health of the engine. Dinan performance engine software is so much more than just turning up the turbo boost after all. It is a fully re-tuned engine management program that maximizes power while keeping all the BMW factory safeguards in place. In most cases Dinan software engineers also implement their own additional safety precautions in order to guarantee flawless performance that may not have been needed with factory power levels/programming. Protecting your BMW, while giving the most performance, is the definition of "Performance Without Sacrifice". To do just that, drivetrain and engine components are analyzed for strength, and then the calibration is tested on the dyno and in the real world for durability and drivability. This process has been a cornerstone of Dinan software development for decades and a major reason why Dinan performance tunes are often labelled as being the smoothest, factory-like solution in the marketplace. While the tune itself is the most noteworthy aspect of the DINANFLASH Handheld it is also much more then just an improved delivery mechanism for the masses. It is loaded with additional features that assist in monitoring, logging and troubleshooting as well. These features allow increased visibility on the inner workings of the engine/vehicle and help to ensure that the car is functioning at peak performance at all times. Important Notes: 1. DINANFLASH Handhelds are DIY and thus are at your own risk. Dinan is not responsible for consequential damages (neither parts nor labor) that may be caused as a result of the installation or use of this product. 2. The B58(M0) and 'F' Chassis B46 engines and their multitude of variants account for numerous unique box codes across various platforms. While Dinan has created files for many of these permutations, there is a chance you may have a box code that we have not seen. If this happens to be the case the handheld will prompt you to plug in the device to a computer after the unlock process in order to transmit relevant data to Dinan. We ask that you give us a call at 1-800-341-5480 when this has occurred so we can expedite the request. File creation typically occurs within 24-48 hours and will be available once the DINANFLASH Handheld is updated with new software via the Update Agent. Additional information about this process can be found in the user manual as well as the FAQ. 3. It is recommended that you update your DINANFLASH Handheld unit upon receipt via the Update Agent software to ensure the device is loaded with the most recent software/firmware.


  • ECU flashing at home courtesy of a palm perfect handheld device equipped with a high definition 2.8" color screen and an easily navigable graphic interface that plugs into the OBD2 port.
  • One device supports and can flash Dinan software for either the B58(M0) or 'F' Chassis B46 engine.
  • More Power: Max gains between 50-98 WHP / 67-120 lb-ft of torque depending on octane for the B58(M0) engine and max gains between 39-84 WHP / 54-121 lb-ft of torque depending on octane for the 'F' chassis B46 engine.
  • Multiple octane calibrations (91, 93, 100 and 104) that can be flashed in moments directly from the handheld. 104 mapping only available for the B46 engine.
  • Full map rescaling for drivability from idle to wide open throttle and everywhere in between.
  • Optimized boost control, cam phasing, fueling, airflow and temperature controls for maximum power output that is also safe and reliable.
  • Top speed governor (VMAX) removed.
  • Sport gauges rescaled to reflect higher than stock power output.
  • Retains all BMW factory engine safeguards and adds additional safety precautions as well.
  • Vehicle monitoring and logging capabilities. Up to 8 PID's monitored at a time with up to 4 displayed on screen.
  • Read and clear diagnostic codes.
  • One device can flash multiple VINs for maximum vehicle versatility (only one can be paired at a time).
  • Upgradeable from DINANTRONICS Elite (V1 or V2) at a discounted rate via trade-in program. See the FAQ linked below for details.
  • Free software updates for life via the Update Agent software.
  • DINANFLASH Handhelds carry a 1 year limited warranty.
Brand Dinan
Dinan Point Value3
Emission Code7
Factory Rated HP320 (353 Measured)
Factory Rated Torque (lb-ft)332 (347 Measured)
Install MethodAt-Home
Labor Time (Hours)0.5
Max HP Gain111 @ 6500 RPM (100 Octane)
Max Torque (lb-ft) Gain129 @ 3000 RPM (100 Octane)
Peak HP464 @ 6500 RPM (100 Octane)
Peak HP Gain111 @ 6500 RPM (100 Octane)
Peak Torque (lb-ft)469 @ 3500 RPM (100 Octane)
Peak Torque (lb-ft) Gain126 @ 3500 RPM (100 Octane)
Product TypeHand Held Programmer
Sale CategoryTuners and Programmers
WarrantyLimited 1 Year Warranty
Part Number4431

This part is legal under the provisions of EPA’s Tampering Policy dated November 23rd, 2020. The company has reasonable basis (test results) to verify that this product allows the vehicle to operate within legal emissions standards and is therefore legal to be sold for on-street use in all states that accept the legal provisions of the Clean Air Act and the EPA Tampering Policy. This product is NOT LEGAL FOR SALE OR USE IN THE STATE OF CALIFORNIA. Testing with the California Air Resources Board, in order to achieve 50-state compliance, is pending with CARB. Once testing is complete with California, and an E.O. number is issued, this product will be updated to 50-state legal status.
Update Agent Installers
Windows and MacOS installers to ensure your DINANFLASH Handheld is always up to date.
Limited 1 Year Warranty: See Details

Dinan Stage 1 Performance Charts

Engine & OctaneSelect Graph Type

Calibration Quick Reference

All info supplied in the table below is 'at the crank' for consistency when comparing data with BMW advertised numbers which are always reported at the crank. For data 'at the wheels' please refer to the appropriate chart from the dropdowns above.

Table also represents all possible ECU software options currently available, and loaded, on the DINANFLASH Handheld selected. Where applicable, some stages / variants may require additional hard parts to achieve advertised numbers. Please consult the appropriate stages product page for details.

Stock as Reported by BMW 320 HP332 LB-FT
Stock as Measured by Dinan 353 HP347 LB-FT
91 Octane 410 HP407 LB-FT +57 HP +70 LB-FT
93 Octane 428 HP423 LB-FT +75 HP +85 LB-FT
100 Octane 464 HP469 LB-FT +111 HP +129 LB-FT
Stock as Reported by BMW248 HP258 LB-FT
Stock as Measured by Dinan266 HP271 LB-FT
91 Octane303 HP319 LB-FT+43 HP+59 LB-FT
93 Octane314HP345 LB-FT+59 HP+78 LB-FT
100 Octane336 HP377 LB-FT+83 HP+117 LB-FT
104 Octane346 HP393 LB-FT+93 HP+132 LB-FT
Only use fuel equal to or higher than specified. Never use a lower octane fuel. Always follow our fuel guide, especially with race fuel and Ethanol, where available. Dynos are for reference only. Results will vary. Contributing factors include the vehicle condition, vehicle setup, dyno type, dyno setup, environmental factors, fuel quality, and more.

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*Free Shipping & Handling only offered to the contiguous US on orders over $149, excludes clearance parts and oversized packages.

Some parts are not legal for use in California or other states with similar regulations.