Dinan Stage 1 Performance Engine Software - 2016-2018 BMW M2



Part # D900-N55-M2-S1 Be the first to write a review

Dinan Stage 1 Performance Engine Software - 2016-2018 BMW M2

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

See Emissions Details
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 Stage 1 Performance engine software is designed for the N55 engine to yield maximum power (for a variety of different octanes), improve drivability, and remove the factory speed governor for unadulterated entertainment.


  • More Power: Max gains of 67 WHP / 98 lb-ft of torque over stock on 104 octane. Consult the performance charts for additional octanes and detailed data.
  • Dinan Stage 1 performance software includes a limited lifetime warranty against defects in the software and provides free updates and reflashes as they become available. Labor or shipping charges are not included in the warranty.
  • Access to numerous octane calibrations depending on your needs (91, 93, 100 and 104). Switching between mappings would require a reflash at a Dinan authorized dealer.
  • 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 an 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.
Brand Dinan
Dinan Point Value3
Emission Code7
Factory Rated HP365 (384 Measured)
Factory Rated Torque (lb-ft)343 (379 Measured)
Install MethodDealer
Labor Time (Hours)0.5
Max HP Gain74 @ 4000 RPM (104 Octane)
Max Torque (lb-ft) Gain104 @ 3000 RPM (104 Octane)
Peak HP478 @ 3000 RPM (104 Octane)
Peak HP Gain56 @ 6000 RPM (104 Octane)
Peak Torque (lb-ft)442 @ 5500 RPM (104 Octane)
Peak Torque (lb-ft) Gain98 @ 3500 RPM (104 Octane)
Product TypeEngine Software
WarrantyLimited Lifetime Warranty
Part NumberD900-N55-M2-S1

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


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 Stage 1 Performance Charts

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 for the selected platform. 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 365 HP 343 LB-FT
Stock as Measured by Dinan 384 HP 379 LB-FT
DINAN + / 4YR/50K / $1,099.95
Dinan + (93 Octane)403 HP 447 LB-FT +50 HP +74 LB-FT
STAGE 1 / LIMITED / $499.95
91 Octane 391 HP 413 LB-FT +23 HP +40 LB-FT
93 Octane 403 HP 447 LB-FT +50 HP +74 LB-FT
100 Octane 430 HP 466 LB-FT +66 HP +93 LB-FT
104 Octane442 HP 478 LB-FT +74 HP +104 LB-FT
STAGE 2 / LIMITED / $549.95
91 Octane 411 HP 430 LB-FT +42 HP +55 LB-FT
93 Octane 417 HP 440 LB-FT +48 HP +64 LB-FT
100 Octane439 HP 474 LB-FT +71 HP +95 LB-FT
104 Octane454 HP 486 LB-FT +85 HP +111 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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    Some parts are not legal for use in California or other states with similar regulations.