Hi, Looking for best advice. I would like to increase the performance in my 2017 C43 4Matic via a re-map. No-one local who specialise only the usual plug in type garage offering generic maps and no experience. Some advise defo obd, some say ecu has to come out so confused. Looking for advice and recommendations please. Based in Hereford but happy to travel.
Thank you all in advance of support.
Thank you all in advance of support.