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DINANTRONICS Performance Tuner Stage 1 - 2012-2016 BMW 228i/328i/428i


Part # D440-1633-ST1 Be the first to write a review
Estimated shipping date: 12/05/2021
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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. NOTE: In stock trim, we found that the N20 engine produces more power than the N26 engine at peak rpm (+24 Hp at 6,000 rpm). This, despite BMW's claims that the N26 engine produces just as much power as the N20. Below 5,500 rpm, both engines perform identically. By all means, the engines are identical, except for the EVAP system and the catalytic converters. The N26 engine uses higher density (read: more restrictive) CATs, which robs power from the engine at high rpm. The N26 CATs have 900/600 cells/square inch, while the N20 CATs have 600/400 cells/square inch. This difference also affects the power gains with DINANTRONICS.


  • More Power: Max gains of up to +36 HP and +44 lb-ft TRQ (Crank)
  • Factory matching 4yr/50k mile new car warranty
  • 50 State Emissions legal; 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

About Dinan

Dinan knows European marques – quite literally – from the inside out. Whether you need hard parts such as exhaust systems or coilovers, or ECU upgrades to unlock your engine's potential, Dinan has the parts to take your BMW, Mercedes-Benz, or Mini to the next level.

Brand Dinan
Dinan Point Value3
Emission Code1
Factory Rated HP240 (261 Measured)
Factory Rated Torque (lb-ft)260 (290 Measured)
Labor Time (Hours)1.5
Max HP Gain36 @ 5500 RPM
Max Torque (lb-ft) Gain44 @ 3500 RPM
Peak HP295 @ 5500 RPM
Peak HP Gain29 @ 5000 RPM
Peak Torque (lb-ft)327 @ 4000 RPM
Peak Torque (lb-ft) Gain37 @ 4000 RPM
Product TypeInline Chips and Modules
Part NumberD440-1633-ST1

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
This version of the DINANTRONICS Performance Tuner is ONLY compatible with vehicles equipped with the N26 engine.

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

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