Dinan Stage 2 Performance Engine Software for BMW 545i E60 2004-2005

Dinan D903-4552

The software safely raises the rev-limiter by 250 rpm, enabling you to carry more road speed in each gear, as well as optimize shift points. The top speed governor has been removed, whic enables the cars to reach their natural top speed. Revised EML tuning provides improved drivability by speeding up throttle response.

Performance Engine Software tuned specifically for use with Dinan's High Flow Intake, optimizing power output as well as improved drivabiltiy. 

Special Note: 

For use with Dinan High Flow Intake System.


  • 2004-2005 BMW 545i Sedan
Product Specifications:
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal
Included Notes Included Item Details