Dinan Performance Engine Software for BMW 550i 650i 750i and 750Li

Dinan D900-505

All orders will include an AutoTalent window decal
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.

Performance Engine Software extracts additional power as well as improving drivabiltiy. 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. 

*Dyno results when combined with a K&N free flow air filter (available at additional cost).

Special Note: 

K&N free flow air filter element recommended for optimum performance.


  • 2006-2010 BMW 550i E60 
  • 2006-2010 BMW 650i E64 Convertible 
  • 2006-2010 BMW 650i E63 Coupe 
  • 2006-2008 BMW 750i & Li E65/E66 
Product Specifications:
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal.
California Air Resources Board Executive Order Number D-176-37.
Max HP Gain 8 @ 6500 rpm*
Max Torque Gain 6 lb-ft @ 6500 rpm*