ECU TUNING QUESTIONS
Does anybody know if a remote email tuning file for S55 m113k work for a 2006 CLS55 m113k car with same performance setup?
I have a S55 with mods and still had the email file for it. I just bought a cls55 and wanted to do the same mods. Was wondering, if the file would work?
What's the cost for tuning the C400 ?







