I have a Sub-woofer enclosure with (2) 10in Kicker CVT subs. This box is designed specifically for the 07+ Toyota Tundra Double Cab. It is a down firing sub and is completely hidden under the rear passenger seats. You will never even know it's there until you turn the sound on and it sounds incredible!.
The Specs on the Sub's which are less than 6mos old.
10in Woofer
Peak Watts 800
RMS Watts 400
Freq Response 25 - 350
Mounting Depth 4-3/16th's
The Box with the Subs is HEAVY but I realize not everyone is local but boy would that be a bonus!.
Prices as follows:
Box Alone: $ 75 plus shipping
W/Subs $200 plus shipping.
or $100 for just the two Subs plus shipping.