I don't know what to do.... I'm willing to get rid of my spare to get the right box to fit.... I really like deep, accurate, hard hitting bass... What would produce the sound that I like a Sealed box or Portered??? Does anyone have experience with this???

go sealed. Many people state that you don't lose a lot of sound quality going ported with a w7 but you have to lose some. A 12w7 in a sealed box will give you all the bass you can handle. Don't worry about going ported.

Check out this site to answer your question.

http://www.jlaudio.com/tutorials/magic/index.html

Do you hear me?

That sub sounds best ported.. if you can afford to lose the trunk space... talk about a totally power hungry inneficient sub...

I must agree with narkotic, go ported. I have listened to this sub in both enclosures in many vehicles and ported allways sounded best. Granted you can make a ported box sound bad if it is not built correctly. If you can mimic the roll off of a sealed enclosure, but 3db louder then you will have a great sounding sub that will pound. Oh yea, it is really strong ported too.