Dinan Performance Engine Chip - 1988 BMW 325e/528e


Part # D900-2731 Be the first to write a review
Suggested Retail
Find a Dealer
Dinan Performance Chips take full advantage of 91+ octane fuel unleashing additional power 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 as providing additional performance where the cars are driven most often.


  • More Power: Max gains of +14 HP @ 4000 RPM and +20 lb-ft TRQ @ 3500 RPM
  • 50 State Emissions legal; CARB EO # D-176-8
  • Rev-limit increased
  • Improved throttle response
  • Smooth and predictable power delivery
Brand Dinan
Dinan Point Value3
Emission Code1
Factory Rated HP143
Factory Rated Torque (lb-ft)174
Labor Time (Hours)0.5
Max HP Gain14 @ 4000 RPM
Max Torque (lb-ft) Gain20 @ 3500 RPM
Peak HP145 @ 5000 RPM
Peak HP Gain2 @ 5000 RPM
Peak Torque (lb-ft)194 @ 3500 RPM
Peak Torque (lb-ft) Gain20 @ 3500 RPM
Product TypeEngine Chip
Part NumberD900-2731

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

    Your Review

    *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.