Dinan + Performance Engine Software - 2016-2018 BMW M2


PART# D900-N55-M2-S1-W

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Dinan has a long and storied past when it comes to engine tuning having introduced our first engine performance chip in the mid 80's - over 3 decades ago. From those early years with chips, followed by engine software and then to our own external control modules we have become experts in nearly every possible way to extract safe, reliable power from the factory powerplant. While we have long preferred the unheard of control and sophistication capable of being achieved from engine software, over the past 6 years that option was not one afforded to us. That changes now with the re-introduction to flash tuning for Dinan with the S55, and now, N55 engines. The start of the next generation of Dinan flash tunes, the N55 calibrations are held to the same principles of the past; performance, reliability, and safety. 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. Protecting your BMW while giving the most performance is the definition of "Performance Without Sacrifice". Drivetrain and engine components are analyzed for strength then the calibration is tested on the dyno and in the real world for durability and drivability. This generation of Dinan flash tunes does differ from the past however in that there are multiple octanes to choose from depending on your needs, desires or limitations. Whether you need a tune for 91 pump gas living in California or want to experience maximum performance on 104 octane race gas at the track or something in between, chances are Dinan has an option for you. The Dinan + Performance engine software is designed for the completely stock N55 engine and yields more power, improved drivability while also removing the factory speed governor for maximum enjoyment. Dinan + variants of engine software also carry the signature Dinan 4yr / 50k, factory matching warranty that the brand is synonymous with.


  • More Power: Max gains of 46 WHP / 69 lb-ft of torque over stock on 93 octane. Consult the performance charts for additional octanes and detailed data.
  • Factory matching warranty coverage (4year / 50,000 mi), including the possibility of consequential damages.
  • Calibrated to work exclusively with pump gas (91 and 93 octane).
  • No required parts. Install on a stock car and receive the full power gains.
  • Full map rescaling for drivability from idle to wide-open throttle and everywhere in between.
  • Top speed governor removed.
  • Sport Cooling in manual mode for optimum track effectiveness.
  • Upgradeable from DINANTRONICS - See the FAQ linked below for details
  • Retains all BMW factory engine safeguards and adds additional safety protections such as the stationary rev limiter being set to 5000 RPM.
  • Torque gains drastically improve acceleration.
  • Sport gauges rescaled to reflect higher than stock power output.
  • Downloads through the OBD2 Port - See compatability notice at the bottom of the product page.


Dinan Point Value3
Emission Code7
Factory Rated HP365 (384 Measured)
Factory Rated Torque (lb-ft)343 (379 Measured)
Labor Time (Hours)0.5
Max HP Gain50 @ 4000 RPM (93 Octane)
Max Torque (lb-ft) Gain74 @ 3000 RPM (93 Octane)
Peak HP403 @ 6000 RPM (93 Octane)
Peak HP Gain18 @ 6000 RPM (93 Octane)
Peak Torque (lb-ft)447 @ 3000 RPM (93 Octane)
Peak Torque (lb-ft) Gain64 @ 3500 RPM (93 Octane)
Product TypeEngine Software
WarrantyDinan Factory Matching (4yr/50k) Warranty
Part NumberD900-N55-M2-S1-W



This part is legal under the provisions of EPA’s memorandum 1A. 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 EPA Memorandum 1A. 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.


While Dinan has created files for all known North American M2 box codes we have not had access to international box codes. In these instances we will need to create a file for your vehicle. This process could take several days and multiple dealer visits.

Dinan + Performance Charts

OctaneSelect Graph Type

Tech Resources

See compatibility notice at the bottom of the product page for information on potential limitations to an OBD2 flash for international M2's.

Warranty Information

Dinan Factory Matching (4yr/50k) Warranty: See Details


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