I know this sounds lame, but need to know how to replace....

Zbrah

I would also tape up along the edges of the head lights and fenders where your bumper might come in contact and scratch the car. Other than that it's an easy task. If you have the oiled type K&Ns, you'd need to pick up a bottle of intake cleaner and oil to clean the filter and re apply the oil. They sell the kit at autozone ~15 or so.

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