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Originally Posted by YolkyPalky
Call me a neophyte, but could someone explain what a "tune" means exactly? What is involved, what is changed, what is altered in a "tune"? Thanks.
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A 'tune' strictly speaking refers to a software upgrade to the computer's ECU. Basically it changes up the engine's parameters, such as boost level, timing, air/fuel ratio, etc. to get the engine to produce more hp and torque.