Any ideas on boxes or how I can even do it?

 

Strong username and first post

 

Custom box will do it.

There is a couple boxes out there that are pre made that will do the job.

Search "350z box" on eBay and sift through the results, you'll see a couple.

 

niceee, not sure if Zenclosures have a dual 7" enclusure but they rock! good fit and good quality! check em out

 

i have 2 W6's in a Zenclousre box and can only take it up to about 15 volume wise, when my deck goes up to 40. any higher and those speakers start to "pop". which always happens with the high end JL subs because there is not enough air space to accomade them. i know W7's will need way more air and your typical 350z boxes wont be able to give them the ample space they need. i would go 2 w6's but you will deff need c3-c5 door speakers to compete with that sub set up, because the bass is so close and doesnt have to go through any metal such as a trunk or frame. If you really want a w7 i would do a single or 2 w6's with c5 door speakers all around. with a JL-1000 powering the subs and a JL300/4 for the door speakers. or if you want to go crazy get the new JL amp which is smaller than the slash series amps but produce double the power. 600/4 i think they are called the HD series there sick.

 

Just get one W7

I have a 10w7 that I'm just waiting to put in. Zenclosure has boxes just for w7's..