K&N Typhoon CAI Need Tune?

Templarjj75

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Hello, I Recently Installed A K&N Typhoon CAI on my 07 GT. After driving it for a bit, I got a CEL, with a lean code....Do I need a tune?? I apologize for my ignorance if its common knowledge now, but Ive been out of the Mustang game for a while..(2001). Any help is appreciated
 

Dino Dino Bambino

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If the intake tube diameter is larger than stock, the MAF transfer curve in the ECU needs to be modified in order to prevent a lean condition.
 

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