Good grief, crutchfield has gone way up since I looked at the MTX Thunderforms before!!! Last time I checked, about a year and a half ago, was about 479 loaded!!! Geez! I shoulda bought em when I had the chance.

 

Great Link.... they have a contest goin on for $2,000. of free gear too!

 

I grabbed a mtx thunderform box for my truck off of ebay a while back, ran it with a rockford fosgate amp for a year before I wanted more........ swapped the mtx sub to JL audio 10w3's sounded better, finally got around to swappin the rockford to a JL audio 500/1 mono sub amp and will never look back..... to do it again I would go after a higher end empty box designed for 12" subs, then add a pair of 12" JL subs and possibly go to the extreme of a 1000/1 amp. the 500/1 is plenty of power, but who ever said thats enough and meant it ? Lots of sub boxes on ebay, just try to get a better quality one, thicker wood for better control, plan ahead for mounting depth and you will be good to go. Great spot to mount the amp is under passenger front seat, gotta take the seat part way out to put it in, and anyone else w sticky fingers will have one helluva time gettin it out due to not being able to remove mounting bolts with the seat in the way.

 

i have 2 memphis 12's i was gonna stuff under the back seat but i have note done it yet. i found a few pre made boxes on the net but i have never heard one in person. anyone have any exsperance with these? i think i saw them on e-bay stores but it has been a while.

 

i got 2 12's under my rear seats and a 3000 watt amp behind it

 

duramax... never seen the inside of a duramax. i bet they have more space than a 3rd gen quad cab.

 

i got a ext. cab (cab and half) and it feel as big as a 3rd gen quad cab.

Theres nothing under the rear bench, and theres like 8 inches of clearance down there. makes enough room for what i got.