Any1 know whats a good box size for my 2 12" aluminum eclipse? thanks

 

Depending on the type of music you listen to. If you want tight bass, keep the box at about .75^3ft per sub, excluding displacement, if you want something little more musical, go with 1^3ft to 1.25^3ft per sub. If you want to rattle your trunk lid off, go with a ported box about 1.5^3ft per sub.