Dinan Performance Engine Software for BMW X5 4.4i E53 2000-2003


Performance Engine Software releases more power by re-programming the fuel mixture and ignition timing parameters of the engine management system. The software safely raises the rev-limit, giving your BMW a broader power band and greater road speed potential in each gear.

Significant gains are also achieved at part throttle, making extra power available where you spend the bulk of the time driving. The top speed governor has also been eliminated, enabling the vehicle to achieve it’s ”natural” top speed.

Special Note: 

For 2000 - 2003 models only.


  • 2000-2006 BMW X5 4.4i E53 
Product Specifications:
Labor Hours/Installation Hours 0.50
Emission Status 50 State Emissions Legal; For 2003 models 49 State Emissions Legal. This product is in compliance with U.S. EPA Memorandum 1A, or this product has not been found, nor is believed to be, unlawful for use under the provisions of the Clean Air Act. Currently: This product is legal in California only for racing vehicles, which may never be used upon a highway.
Max HP Gain 9 lb/ft @ 4500 rpm
Max Torque Gain 11 lb/ft @ 2000 rpm
Included Notes Included Item Details