sealed into ?

I just bought some 12 inch woofers and i got a sealed box with em. Is there any way i can drill a hole in it or something to make it thump harder without spending any money.

Don't bother... If you want it louder, buy a decent sub, or build your own box... its not that hard of a concept...

ya, here is all you got to do. get out your saw zaw and cut you 2 holes like 9" big in the top. then take a hammer and a nail and punch a bunch of holes in the surround (the foam part). and if yo uwant them to get even louder (and get more performance out of your car) swap your batery terminals. yo ucan also take your headers off for ultamite free flow exaust. (please note sarcasum)