Dinan SMG Transmission Software - 2001-2006 BMW M3


Part # D902-34A6D Be the first to write a review
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Dinan's Transmission Software modifies shift points, enabling SMG cars to be equipped with the 3.91 Limited Slip Differential.


  • For use with 3.91 Limited Slip Differential (D773-0460).
  • Raised shift points in automatic mode by 200 RPM.
Brand Dinan
Dinan Point Value1
Emission Code5
Labor Time (Hours)0.5
Product TypeTransmission Software
Part NumberD902-34A6D

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Requires a 3.91 differential to perform properly.

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