Dinan Performance Engine Chip - 1991-1993 BMW M5


Part # D900-3631E Be the first to write a review
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Dinan Performance Chips take full advantage of 91+ octane fuel unleashing additional power from your BMW M5 E34 by recalibrating the ignition timing and air/fuel mixture parameters of the engine management system. Furthermore, the performance software safely raises the factory rev-limit, providing a broader power band and greater road-speed potential in each gear. Significant power gains are achieved at part throttle as well, providing additional performance where the cars are driven most often.


  • More Power: Max gains of +37 HP @ 7000 RPM and +36 lb-ft TRQ @ 3500 RPM
  • 50 State Emissions legal; CARB EO # D-176-8
  • Top speed governor removed
  • Optimized fuel and ignition curves for supreme fuel
  • Improved throttle response
  • Smooth and predictable power delivery
Brand Dinan
Dinan Point Value3
Emission Code1
Factory Rated HP311
Factory Rated Torque (lb-ft)282
Labor Time (Hours)0.5
Max HP Gain37 @ 7000 RPM
Max Torque (lb-ft) Gain36 @ 3500 RPM
Peak HP342 @ 6800 RPM
Peak HP Gain31 @ 6800 RPM
Peak Torque (lb-ft)294 @ 4000 RPM
Peak Torque (lb-ft) Gain12 @ 4000 RPM
Product TypeEngine Chip
Part NumberD900-3631E

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