Dinan Stage 2 Performance Engine Software for BMW 645Ci E63 Coupe 645Ci E64 Convertible

Special Note: For use with Dinan High Flow Intake System.
Product Description
The software safely raises the rev-limiter by 200 rpm for manual and SMG transmissions and 100 rpm for automatics, enabling 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. 


  • 2004-2005 645Ci E63 Coupe 
  • 2004-2005  645Ci E64 Convertible 
Product Specifications
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal
Included Notes Included Item Details