A few years ago i made my own Sub box for the 350Z, been sat on the wardrobe in the spare room for 15 months (after i got the 370z) bout time it went to a new home.
made out of 12mm MDF with a Mutant 10" Sub, the black acoustic carpet is a little patch work in places, reused some from my last box, can't be seen when the box is in place tho. Have stapled it as well as the glue had become dry and started to curl up , the connector is also reused hence the over sprayed glue, really bigging it up aren't i
Was installed with the standard boot carpet, fits under the boot strut brace and never moved, slightly modified the corners on the sub side to gain access to the cargo net hooks.
Only want £20 including delivery (weights about 11kg)
Cheers
Neo