I need a sub box for my 06 supercap that fits dual 10'' subs. nobody ive found makes a decent box.

 

I've also been looking for boxes and fox acoustics or super crew sound have good reviews...

http://www.foxacoustics.com/

http://www.supercrewsound.com/

If you really want to spend some money you can get an MTX thunderform or JL Audio stealth box.

Or, you can go cheaper and get an Atrend box or there's Rodneysboxes on eBay. Both of those have good reviews for the price. I'd go with a Rodney box but the mounting depth is only 4-7/8. Probably going with the Atrend.

 

Or just go to a local car audio shop and get a box made, a carpeted box made from 3/4" mdf should only run you about $50-100 depending how fancy you want to go and then the box will made to match your subs. Versus getting a box that have the correct airspace for the subs you choose.

Also, MTX Thunderforms and JL stealthbox's are ridiculously overpriced for what you get. JL your just paying for a name and MTX your paying for a name that hasn't made good subs or amps in 5+ years.