Top Definition
When a professional, using Cobb Tuning's ProTUNER software, makes adjustments to one or more maps stored on a user's Cobb AccessPORT to maximize power, fuel economy, or meet other customer goals for a Subaru Impreza, Legacy, or Forester.
I went stage II and got a protune, now my car is teh fastAr!!
by IWSTI September 30, 2006
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