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Best tuning laptop to ECU cable

General Tuning Discussion

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I'm taking the courses on here so I can hopefully begin to tune cars and become very efficient and good at it before I start tuning however I would like to know what is the best basic cable to get in order to reflash a factory ECU

It's very platform specific. What vehicle and engine?

Unfortunately there's not a "one size fits all" cable. Completely depends on the platform (as stated above).