BMW 5 serie · E39 - 1995 - 2003
523i 170hp Stage 1 tuning
ECU remap / chiptuning file for the BMW 5 serie 523i 170hp. Figures below compare the stock calibration with our tuned file, reviewed by experienced calibrators with safety limits respected.
Power
170 hp
187 hp
+17 hp
Torque
245 Nm
272 Nm
+27 Nm
Engine specifications
- Engine code
- 256S3
- Fuel
- Petrol
- Displacement
- 2495 cc
- Compression
- 10.5 : 1
- Bore × Stroke
- 84.0 X 75.0 mm
- ECU
- Siemens/Continental MS41, Siemens/Continental MS42, Siemens/Continental MS43