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ImpalaWhile undergoing many facelifts in its history, the Impala has proved itself to both civilians and police forces as one of the most capable 4-door cars GM has ever offered. Currently moving towards its 10th generation the Impala is one of the longest lasting and popular models.
i just got a 2005 impala and wanted to know if putting in a k&n air filter would do anything. would it increase horse power, or make the engine sound better?
just putting in a K&N airfilter might give you a few horse power but nothing you will notice...and no it will not mke the engine sound any different