Dinan Stage 1 Performance Engine Software - BMW S63 (TU4) Engine



Part # D900-S63-T4-S1 Be the first to write a review

Dinan Stage 1 Performance Engine Software - BMW S63 (TU4) Engine



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

See Emissions Details
Some of the world's most potent sedans and SUVs to begin with, the F90 M5 and F95 X5M now have the ability to go beyond formidable and to levels of outright domination in their respective classes. With max gains on pump gas nearing +130 WHP and +200 lb-ft of torque courtesy of Dinan Stage 1 software the battle for runner-up in each respective class is the only question. Those are garish gains on their own but considering that those figures are with no additional modifications or alterations to the catalysts, it's an even more impressive feat. One that will be sure to result in a very enthusiastic grin. Utilize race gas or E85 and the gains jump yet another factor of fun -- a mind boggling +198-226 WHP and +190-207 lb-ft of torque to be exact. While increases in power at this scale 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 calibrations 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.


  • More Power: Max gains ranging from 122-130 WHP / 190-198 lb-ft of torque over stock with 93 octane and 198-226 WHP / 190-207 lb-ft of torque on E85. Consult the performance charts for additional octanes and/or detailed data on specific vehicle variants.
  • 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.
  • Choice of numerous octane calibrations depending on your needs (91, 93, 100, 104 & E85).
  • 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.
  • Optimized boost control, cam phasing, lamda targeting, fueling, airflow and temperature controls for maximum power output that is also safe and reliable.
  • Retains all BMW factory engine safeguards and adds numerous additional safety protections.
  • Top speed governor (VMAX) removed.
  • Torque by gear strategies implemented for maximum power output and traction.
  • Sport mode cooling that targets lower coolant temperatures added for optimum track effectiveness.
  • Pedal feel improved to naturally align with the increased torque output.
  • Sport gauges rescaled to reflect higher than stock power output.
  • Remote start functionality (if equipped) completely retained. Digital key presence not required.
Brand Dinan
Dinan Point Value3
Emission Code7
Factory Rated HP600 (681 Measured)
Factory Rated Torque (lb-ft)553 (650 Measured)
Install MethodDealer
Labor Time (Hours)0.5
Max HP Gain131 @ 6500 RPM
Max Torque (lb-ft) Gain200 @ 3000 RPM
Peak HP783 @ 6500 RPM
Peak HP Gain62 @ 5500 RPM
Peak Torque (lb-ft)822 @ 3000 RPM
Peak Torque (lb-ft) Gain59 @ 5500 RPM
Product TypeEngine Software
WarrantyLimited Lifetime Warranty
Part NumberD900-S63-T4-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.
ECU Order Form
Select BMW MG1 under vehicle type
Compatability limited to 2020 MY and prior (specifically up to a 06/2020 build date). 2021+ MY not supported at this time. See DME unlock and compatibility notices at the bottom of the product page for information on additional potential installation/compatibility limitations.
Limited Lifetime Warranty: See Details

Dinan Stage 1 Performance Charts

Engine / Platform Variant & 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 BMW600 HP 553 LB-FT 
Stock as Measured by Dinan681 HP650 LB-FT
DINAN + / 4yr/50k / $1,899.95
Dinan + (91 Octane)753 HP787 LB-FT +106 HP+158 LB-FT
STAGE 1 / Limited / $799.95
91 Octane753 HP787 LB-FT+106 HP+158 LB-FT
93 Octane783 HP822 LB-FT+135 HP+200 LB-FT
100 Octane818 HP831 LB-FT+167 HP+197 LB-FT
104 Octane844 HP840 LB-FT+193 HP+206 LB-FT
E85877 HP839 LB-FT+226 HP+207 LB-FT
Stock as Reported by BMW617 HP553 LB-FT
Stock as Measured by Dinan707 HP649 LB-FT
DINAN + / 4yr/50k / $1,899.95
Dinan + (91 Octane)753 HP787 LB-FT +115 HP+170 LB-FT
STAGE 1 / Limited / $799.95
91 Octane753 HP787 LB-FT +115 HP+170 LB-FT
93 Octane783 HP822 LB-FT +144 HP+214 LB-FT
100 Octane818 HP831 LB-FT +165 HP+209 LB-FT
104 Octane844 HP840 LB-FT +187 HP+218 LB-FT
E85877 HP839 LB-FT+197 HP+214 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.


2020 MY and prior (specifically up to a 06/2020 build date) S63(TU4) DME's must be unlocked and bench flashed by Dinan. 2021 MY vehicles are not supported at this time. While dealer / retail unlock and flashing tools are in development, at present, two options are available:

OPTION 1: Visit a Dinan Dealer and purchase the Dinan Flash Software . They will remove and mail the DME's to Dinan. We'll unlock the DME's, flash the software and ship them back. They'll reinstall the DME's.

OPTION 2: Purchase the tune. Send us your DME's (label each appropriately). We’ll unlock it, install Dinan software, and ship them back. The unlock process is free. Ground shipping to the continental USA is free. Follow the steps below if this is the course you wish to pursue.

  1. Purchase the tune by contacting Dinan via phone at 1-800-341-5480.
  2. Fill out the unlock form and select BMW under the unlock type.
  3. Mail your labelled DME's to Dinan, 4800 U.S. Hwy 280 W, Opelika, AL 36801, USA, and include the last 7 of your VIN on the outside of the box along with a copy of the unlock form inside the box.

At no time during the unlocking process are the DME's opened or physically modified. Once unlocked the DME's can be flashed through normal dealer tools. If the DME's are flashed back to stock, they will need to be unlocked again. Also, vehicle manufacturers issue many DME part numbers and revisions throughout their vehicle lineup. As such, some DMEs may be temporarily unavailable as new parts and/or revisions are released.

CODE CLEARING: Customers doing the DME removal/install process themselves should be aware that in the case a fault code occurs, having the ability to read and erase fault codes is crucial. Failure to be able to perform this task may result in a vehicle that is inoperable. Dinan will not cover any expenses related to not being able to clear codes (towing, equipment rental, etc.).


BOX CODES: The S63 engine accounts 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 we will need to create a file for your vehicle. This process could add up to 7 days to the bench flash process although in most cases it will be turned around within 2 business days.


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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.