Dinan Stage 2 Performance Engine Software for BMW 550i E60 650i E64 Convertible 650i E63 Coupe 2006-2010

Dinan D903-5052

The software safely raises the rev-limiter by 200 rpm for manual and SMG transmissions and 100 rpm for automatics, which enables you to carry more road speed in each gear, as well as optimize shift points. 

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. 


  • 2006-2010 BMW 550i Sedan
  • 2006-2010 BMW 650i Convertible
  • 2006-2010 BMW 650i Coupe
Product Specifications:
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal.
California Air Resources Board Executive Order Number D-176-37.
Included Notes Included Item Details