F-250 / F-350 Crew Cab 99-08 BTS Triple Subwoofer box - $169 ON SALE $134

Will not fit if you have a power rear window!

Can be used as a Dual

• Fits four 8 or three 10 subwoofers 
• Fits three 12 shallow mount subwoofers 
• Fits behind the back seat
• Must not have power rear window
• Removal of jack is necessary
• Vents need to be removed
• MDF construction
• Air Space = .55 cubic feet per sub (.83 per sub for dual cutouts) (99-07)
• .45 cubic feet per chamber (.68 per sub for dual cutouts) (2008) 
• Mounting Depth = 5.25 inches
• No large magnet structures 
• Speaker terminals
• Hole cutout for 8" Sub = 7"
• Hole cutout for 10" Sub = 9 1/8"
• Charcoal Grey Carpet 

OEM Carpet available to match your interior

For the ultimate sound package we recommend Image Dynamic subwoofers for this enclosure. 

The ID 8 series for Slamming Bass ID8

The ID10 series for Ultimate Sound Quality ID10 (remove magnet cover)

Free shipping on subs with package purchase!!!   Subs will ship separately.

Please tell us what subwoofer you are planning to use, so we can ensure proper fit in your subwoofer box..