You know that big, black plastic box under your hood that sits right in the middle of your engine? Guess what....it does nothing. Well, it does something, it quiets down some of the incoming air charge sound. If you're anything like us, you'd prefer to dress up your engine bay a little, plus get a little extra turbo sound, and its easy with this simple plug from Merchant. You merely remove the resonator box and install this plug and you're done.