Dinan Stage 3 Performance Engine Software for BMW 745i & Li E65/E66 2004-2005

Dinan D903-4573

The software safely raises the rev-limiter by 250 rpm, and the top speed governor has been removed, enabling the cars to reach their natural top speed. Revised EML tuning provides improved drivability by speeding up throttle response.

Stage 3 Performance Engine Software has been tuned specifically for use with Dinan's High Flow Throttle Body, optimizing power output as well as improving drivabiltiy. 

Special Note: 

For use with Dinan Throttle Body.


  • 2002 BMW 740Li Sedan
  • 2002-2005 BMW 745i Sedan
  • 2002-2005 BMW 745Li Sedan
Product Specifications:
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal
Included Notes Included Item Details