i know i said cubic first then if ur rea later i siad square, just said cubic on accident, and yes crossectional, and wtf are you talking about dont make the lower tuning less port space, thats howthe typical port plug works for slots... //content.invisioncic.com/y282845/emoticons/waycrazy.gif.f4a380c3f94043939fd369defd9e6be2.gif