DINANTRONICS Performance Tuner Stage 2 - 2013-2019 BMW 550i/650i/750i


Part # D440-1634-ST2 Be the first to write a review
Estimated shipping date: 01/24/2022
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The DINANTRONICS Elite Performance Tuner is a highly engineered piece of computer hardware and software that enhances engine performance to levels the stock programming is not allowed to venture into. It does this without negatively affecting your new car warranty coverage and without affecting long term reliability or the functionality of on-board diagnostic systems. It is also the only tuning device designed to be emissions legal in all 50 states. These items are unique to Dinan and together they embody the apex of performance engineering in a powerful reliable and warrantied package. The Dinan Difference is possible by employing a full staff of talented engineers that are well rounded in many facets of automotive engineering and backed by a wealth of hands on knowledge. Stemming from diverse backgrounds not only on racing teams but on standard factory production line vehicles we have seen it all. Manipulating these signals with an adept hand all the while keeping an engine running at its best and with the most reliable power is what Dinan is all about.


  • More Power (with intake): Max gains of up to +97 HP and +85 lb-ft TRQ (Crank)
  • Factory matching 4yr/50k mile new car warranty
  • 50 State Emissions legal (thru 2015 MY); CARB EO # D-176-42
  • Smooth and predictable power delivery
  • On board diagnostics and factory safegaurds maintained
  • Unaffected by dealer factory updates
  • Quickly change stages and/or disable the tuner via iOS or Android app
  • Plug and play installation
  • 3 day satisfaction guarantee
Brand Dinan
Dinan Point Value3
Emission Code1
Factory Rated HP445 (446 Measured)
Factory Rated Torque (lb-ft)480 (511 Measured)
Labor Time (Hours)2
Max HP Gain97 @ 6000 RPM
Max Torque (lb-ft) Gain85 @ 6000 RPM
Peak HP520 @ 5000 RPM
Peak HP Gain74 @ 5000 RPM
Peak Torque (lb-ft)560 @ 4500 RPM
Peak Torque (lb-ft) Gain49 @ 4500 RPM
Product TypeInline Module
Required ItemsDinan Cold Air Intake (D760-0036 or D760-0044)
Part NumberD440-1634-ST2

This part is legal for sale and use on Emissions Controlled Vehicles, in all 50 states, when used in accordance with the manufacturers application guide because it has a California Air Resources Board (CARB) Executive Order (EO) number.

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

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    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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