OVERVIEW
Stage 2 Engine Software is for use with the High Flow Cold Air Intake, ensuring optimum performance and drivability.
Dinan Performance Engine Software unleashes more powerf from your BMW 540i E39 by re-programming the fuel mixture and ignition timing parameters of the engine management system. Furthermore the software safely raises the rev-limit, giving your BMW a broader powerf band and greater road speed potential in each gear. Significant gains are also achieved at part throttle, making extra powerf available where you spend the bulk of the time driving. As an example, a peak gain of 8 horsepowerf at 3500 rpm has been achieved at part throttle with the revised programming. Not compatible with the 540i (E39) from 1999-2003.
Dinan Cold Air Intake System is required in order to run the Stage 2 Performance Engine Software.
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