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    Tuning 1.8tsq

    I want to tune my 1.8ts but I have the old ecu m3.8.2 and I wonder what’s the best way to tune? I can get a new ecu m3.8.3 but I don’t know if everything will be plug and play? Anyone know if I have to repin or something like that? Or is it i easier to just go aftermarket ecu?