Dinan Performance Engine Software - BMW 2001-2003 E39 525I 2.5L | D903-2652
Tuning starting at... $149.95
Select Your Car to Verify Fitment
Stage 2 Engine Software is for use with the High Flow Cold Air Intake optimizing performance and drivability.
Dinan Engine Software safely raises the rev-limit by 240 RPM, endowing your car with a broader power band and greater road speed in each gear. The software also removes the top speed governor, enabling the cars to attain their "natural" top speed. Reprogramming of the drive by wire throttle system speeds up throttle response, dramatically reducing the delayed response to throttle inputs exhibited with the stock programming.
Not compatible with SULEV vehicles.
Dinan Cold Air Intake System is required in order to run the Stage 2 Performance Engine Software.
Stage 3 Engine Software is for use with the Dinan Throttle Body and Cold Air Intake System; optimizing performance and drivability from the combination.
Dinan Engine Software safely raises the rev-limit by 240 RPM, endowing your car with a broader power band and greater road speed in each gear. The software also removes the top speed governor, enabling the cars to attain their "natural" top speed. Reprogramming of the drive by wire throttle system speeds up throttle response, dramatically reducing the delayed response to throttle inputs exhibited with the stock programming.
Not compatible with SULEV vehicles.
Dinan Cold Air Intake System is required in order to run the Stage 2 Performance Engine Software.
Stage 3 Engine Software is for use with the Dinan Throttle Body and Cold Air Intake System; optimizing performance and drivability from the combination.
Features:
- More Power (with intake and throttle body): Max gains of +13 HP and +11 lb-ft TRQ
- 50 State Emissions legal; CARB EO # D-176-26
- 240 RPM rev-limit increase
- Improved throttle response
- Top speed governor removed
- Smooth and predictable power delivery
Dinan Cold Air Intake System and Throttle Body are required in order to run the Stage 3 Performance Engine Software.
⚠️CALIFORNIA WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov
