Dinan Stage 2 Performance Engine Software - 2016-2018 BMW M2



Part # D900-N55-M2-S2 Be the first to write a review

Dinan Stage 2 Performance Engine Software - 2016-2018 BMW M2



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

See Emissions Details
Stage 1 have you wanting more? Stage 2 Dinan performance engine tuning for the N55 powered M2 takes that step forward and optimizes the power curve for the track. Taking advantage of supporting hardware (Dinan big turbo and an upgraded intercooler), the stage 2 engine calibration delivers additional top end power where you need it most when driving competitively; at redline. While increases in power typically come at a cost to the engine's durability, this is typically due to improper calibrations that are simply after one goal regardless of engine health - maximum power. Dinan's stage 2 mappings when used in conjunction with supporting hardware are safe and reliable without sacrificing long-term reliability or performance. 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. With factory-like reliability/safety and a track optimized power curve, it is hard to find a reason not to upgrade to stage 2 for optimum asphalt terrorizing enjoyment.


  • More Power: Max gains of 77 WHP / 102 lb-ft of torque over stock on 104 octane and in conjunction with the Dinan big turbo and an upgraded intercooler. Consult the performance charts for additional octanes and detailed data.
  • Dinan Stage 2 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.
  • 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 Cooling mode in sport mode for optimum track effectiveness.
  • Upgradeable from DINANTRONICS Elite via trade-in program. Consult N55 FAQ 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 below for potential limitations.
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 Gain85 @ 4500 RPM (104 Octane)
Max Torque (lb-ft) Gain111 @ 4000 RPM (104 Octane)
Peak HP486 @ 3500 RPM (104 Octane)
Peak HP Gain70 @ 6000 RPM (104 Octane)
Peak Torque (lb-ft)486 @ 3500 RPM (104 Octane)
Peak Torque (lb-ft) Gain106 @ 3500 RPM (104 Octane)
Product TypeEngine Software
Required ItemsDinan Dual Core Intercooler (D330-0026) and Dinan Big Turbo (D310-0110A).
WarrantyLimited Lifetime Warranty
Part NumberD900-N55-M2-S2

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


BOX CODES: 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 2 Performance Charts

Platform & 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
text442 HP 478 LB-FT +74 HP +104 LB-FT
STAGE 2 / LIMITED / $549.95
91 Octane411 HP 430 LB-FT +42 HP +55 LB-FT
93 Octane 417 HP 440 LB-FT +48 HP +64 LB-FT
100 Octane 439 HP 474 LB-FT +71 HP +95 LB-FT
104 Octane 454 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.