Chiptuning for Alpina B4
All B4 Biturbo
All B4 Biturbo
Fuel type
gasoline 
Standard HP
410 
Standard Nm
600 STAGE 1 +45 HP / +85 Nm
HP
Nm
Stock
410
600
Tuning
455
685
Difference
45
85
Engine details
2979 CC 
84,0 X 89,6 mm 
Bosch MEVD17.2 
N55B30A 
10.20 : 1 Read methods
