Is there any programs off the top of your head that i can play with for a sub enclosure for my new build.Still going back and forth between F1 15s or L715s.This would go in a 1996 Chevy exdt.cab without the rear seat.

http://www.soundsolutionsaudio.com/product...sure_tools.html, and do you mean Fi's?

Are you looking for a tuning calculator? If not, I suggest a pencil and paper. After I get the rough draft done on paper, I fire up Google Sketch Up (Which is VERY easy to learn) and play around in there. It will give you dimensions in there, and you know it's accurate (assuming your math is). As far as tuning, RobClay has your answer.

i dont mean tuning im not that far yet"lol"im trying to get box size for the room i have.i know subs need,say 2.5 cubes per sub.im trying to get demensions i guess.

in that case use the link i posted. its very simple to use

thanks a million!