J
Josh-ZN
Guest
Sorry if this has been posted before, I am a noob on here 
I have a 135i with JB3. Got the JB3 from a friend. I think its ver 1.3 or 1.4. The car feels extremely strong. Was wondering if there are any benefits upgrading to JB4? I am in Durban and run maps 1 - 5 (4 and 5 only for short periods as I am worried our fuel is not good enough - but I cant resist the urge to try them).
Thanks
:=):
I have a 135i with JB3. Got the JB3 from a friend. I think its ver 1.3 or 1.4. The car feels extremely strong. Was wondering if there are any benefits upgrading to JB4? I am in Durban and run maps 1 - 5 (4 and 5 only for short periods as I am worried our fuel is not good enough - but I cant resist the urge to try them).
Thanks
:=):