BMW 3 Series Forum - Technical Talk on the BMW E46
I'm sure this has been done to death but please bare with me.. I have a 53 plate 320d estate. I I'm going to decathlon it and then get it remapped but I don't know where to get this done. We have a company coming to work who say I will get an extra 30 bhp and 60 nm torque. I they are only...