Hi folks. I just picked up a pair of L7 10's to go in my single cab 06 Sierra. I would like to go ported if I can make it play loud and hard enough over a sealed setup to be worth while, however I am not sure as to what my best bet would be in terms of porting for this. The enclosure dimentions will be18"Hx57"Wx7D which is good for 2.91 cubes if my math is right. I've been running 1 12" powerbass L12 in a 2 cubic ft ported enclosure with the sub behind the pasenger seat and one 4" port firing up from the top on the oposite end and it has sounded pretty decent, but I want to run more power and get louder and due to mounting depth issues a more substantial higher power handling 12 isn't in the cards so decided to go with the 2 10's. So my question after all that is if if anyone can offer up a good porting solution for this setup if there is one? i know it's not really ideal with the enclosure being so shallow in depth but my 12 has sounded better than I expected so I figure it may be worth a try. If it doesn't cut it I can always go sealed and be done with it. Should I try and slot port it , or possibly go with a couple 3" round precision ports? You tell me I'm at a loss.