Hi new here but joined to get good solid information on how to tune my car.
It's a 06 118d. (122bhp) my friend has remapped his focus St and he said it was as easy as plugging a box in and away you go.
Is there a remap box I can buy that I can plug in and gain bhp.
Hopefully some of you guys have already done this and can advise me in where to look.
Thanks in advance.