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Discontinued Empty Custom-fit Subwoofer Boxes for your 2004 S40 close

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Atrend A392-10

Dual 10" Subwoofer Enclosure w/ Bedliner Finish for 1999-2008 Ford F250/F350 Crew Cab Trucks

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Dual 10" Subwoofer Enclosure w/ Bedliner Finish for 1999-2008 Ford F250/F350 Crew Cab Trucks

Dual 10" Subwoofer Enclosure • Designed specifically for 1999-2008 Ford F250/F350 Crew Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Dual 10" Subwoofer Enclosure • Designed specifically for 1999-2008 Ford F250/F350 Crew Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Atrend AFG-152-12

Phantom Fit Series 12" Dual Sub Enclosure For GM Extended Cab 1999-07

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Phantom Fit Series 12" Dual Sub Enclosure For GM Extended Cab 1999-07

• 12" Dual Subwoofer Enclosure
• Durable Fiberglass Construction
• Total Box Volume: 2 Cubic Feet
• Subwoofer Mounting Depth: 7.25"
• Color: Black

No Fit Icon Doesn't fit your S40

• 12" Dual Subwoofer Enclosure
• Durable Fiberglass Construction
• Total Box Volume: 2 Cubic Feet
• Subwoofer Mounting Depth: 7.25"
• Color: Black

Atrend A151-12 - Chevy Silverado and GMC Sierra Subwoofer Enclosure

Single 12" Subwoofer Enclosure for 1999-2007 Chevy Silverado and GMC Sierra Extended Cab Trucks

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Single 12" Subwoofer Enclosure for 1999-2007 Chevy Silverado and GMC Sierra Extended Cab Trucks

• Single 12" Down Firing Subwoofer Enclosure
• Designed specifically for 1999-2007 Chevy Silverado and GMC Sierra Extended Cab Trucks
• Coated Tough Guard Finish
• Glued & Braced 3/4" MDF Construction
• Rounded Edges

No Fit Icon Doesn't fit your S40

• Single 12" Down Firing Subwoofer Enclosure
• Designed specifically for 1999-2007 Chevy Silverado and GMC Sierra Extended Cab Trucks
• Coated Tough Guard Finish
• Glued & Braced 3/4" MDF Construction
• Rounded Edges

SSV Works CM2-UD10U

Under Dash Subwoofer Box Enclosure for select 2011-2024 vehicles from Can-Am

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Under Dash Subwoofer Box Enclosure for select 2011-2024 vehicles from Can-Am

• 10" Single Subwoofer Enclosure
• Does not work with vehicles that have a factory snorkel
• Non-amplified - requires additional amplifier and wiring.
• Not directly compatible with WP overhead systems.

No Fit Icon Doesn't fit your S40

• 10" Single Subwoofer Enclosure
• Does not work with vehicles that have a factory snorkel
• Non-amplified - requires additional amplifier and wiring.
• Not directly compatible with WP overhead systems.

Atrend A101-10

Single 10" Subwoofer Enclosure for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks

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Single 10" Subwoofer Enclosure for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks

Single 10" Down Firing Subwoofer Enclosure • Designed specifically for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Single 10" Down Firing Subwoofer Enclosure • Designed specifically for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Atrend A184-12

Dual 12" Subwoofer Enclosure for 2014-2016 Chevy Silverado 2500HD Crew Cab Trucks

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Dual 12" Subwoofer Enclosure for 2014-2016 Chevy Silverado 2500HD Crew Cab Trucks

Dual 12" Down Firing Subwoofer Enclosure • Designed specifically for 2014-2016 Chevy Silverado 2500HD Crew Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Dual 12" Down Firing Subwoofer Enclosure • Designed specifically for 2014-2016 Chevy Silverado 2500HD Crew Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Atrend A382-10

Dual 10" Subwoofer Enclosure for 2001-2008 Ford F250/F350 Extended Cab Trucks

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Dual 10" Subwoofer Enclosure for 2001-2008 Ford F250/F350 Extended Cab Trucks

Dual 10" Down Firing Subwoofer Enclosure • Designed specifically for 2001-2008 Ford F250/F350 Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Dual 10" Down Firing Subwoofer Enclosure • Designed specifically for 2001-2008 Ford F250/F350 Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Atrend A393-10

Dual 10" Sealed Enclosure w/ Bedliner Finish for 2004-2015 Ford F250/F350/F450 Crew Cab with Electric Rear Window

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Dual 10" Sealed Enclosure w/ Bedliner Finish for 2004-2015 Ford F250/F350/F450 Crew Cab with Electric Rear Window

Dual 10" Vented Subwoofer Enclosure • Designed specifically for 2004-2015 Ford F250/F350/F450 Crew Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Dual 10" Vented Subwoofer Enclosure • Designed specifically for 2004-2015 Ford F250/F350/F450 Crew Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Atrend A702-10

Dual 10" Subwoofer Enclosure w/ Bedliner Finish for 1998–2002 Jeep Wrangler

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Dual 10" Subwoofer Enclosure w/ Bedliner Finish for 1998–2002 Jeep Wrangler

Dual 10" Subwoofer Enclosure • Designed specifically for 1998–2002 Jeep Wrangler • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Dual 10" Subwoofer Enclosure • Designed specifically for 1998–2002 Jeep Wrangler • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Bbox by Atrend A312-10CP

Dual 10" Subwoofer Enclosure for Ford Mustang Hatchback and Convertible (All Years)

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Dual 10" Subwoofer Enclosure for Ford Mustang Hatchback and Convertible (All Years)

• Dual 10" Subwoofer Enclosure
• Designed Specifically For Ford Mustang Hatchback and Convertible
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

No Fit Icon Doesn't fit your S40

• Dual 10" Subwoofer Enclosure
• Designed Specifically For Ford Mustang Hatchback and Convertible
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

Atrend A102-10

Dual 10" Subwoofer Enclosure for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks

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Dual 10" Subwoofer Enclosure for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks

Dual 10" Down Firing Subwoofer Enclosure • Designed specifically for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Dual 10" Down Firing Subwoofer Enclosure • Designed specifically for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Atrend A102-12

Dual 12" Subwoofer Enclosure for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks

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Dual 12" Subwoofer Enclosure for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks

Dual 12" Down Firing Subwoofer Enclosure • Designed specifically for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

No Fit Icon Doesn't fit your S40

Dual 12" Down Firing Subwoofer Enclosure • Designed specifically for 1988-1998 Chevy Silverado and GMC Sierra Extended Cab Trucks • Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction • Rounded Edges

Atrend A371-10V

Single 10" Vented Subwoofer Enclosure for 2004-2008 Ford F150 Extended/Super Cab Trucks

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Single 10" Vented Subwoofer Enclosure for 2004-2008 Ford F150 Extended/Super Cab Trucks

• Single 10" Down Firing Vented Subwoofer Enclosure
• Designed specifically for 2004-2008 Ford F150 Extended/Super Cab Trucks
• Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction
• Rounded Edges

No Fit Icon Doesn't fit your S40

• Single 10" Down Firing Vented Subwoofer Enclosure
• Designed specifically for 2004-2008 Ford F150 Extended/Super Cab Trucks
• Coated Tough Guard Finish • Glued & Braced 3/4" MDF Construction
• Rounded Edges

Bbox A181-12CPV - As-is, Intermittent or Unfound Defect (Used)

Single 12" Vented Subwoofer Enclosure for 07-2013 Chevy Silverado and GMC Sierra HD Crew Cab Trucks Intermittent or Unfound Defect

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Single 12" Vented Subwoofer Enclosure for 07-2013 Chevy Silverado and GMC Sierra HD Crew Cab Trucks Intermittent or Unfound Defect

• FEATURE 1
• FEATURE 2
• FEATURE 3
• FEATURE 4
• FEATURE 5
• FEATURE 6
• FEATURE 7

No Fit Icon Doesn't fit your S40

• FEATURE 1
• FEATURE 2
• FEATURE 3
• FEATURE 4
• FEATURE 5
• FEATURE 6
• FEATURE 7

NVX UBE-TOY-COR-G11 BOOST Box (Open Box, Great)

Custom Fit 10” Empty Sealed BOOST Subwoofer Enclosure for

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Custom Fit 10” Empty Sealed BOOST Subwoofer Enclosure for

• Custom Designed 10" Single Sealed Subwoofer Enclosure
• Enclosure constructed of hand-laid fiberglass
• Carpeted finish to match the interior

No Fit Icon Doesn't fit your S40

• Custom Designed 10" Single Sealed Subwoofer Enclosure
• Enclosure constructed of hand-laid fiberglass
• Carpeted finish to match the interior

Bbox by Atrend A341-10CP (Open Box, Good)

Single 10" Subwoofer Enclosure for 09-Up Ford F150 Extended Cab Trucks

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Single 10" Subwoofer Enclosure for 09-Up Ford F150 Extended Cab Trucks

• Single 10" Down Firing Subwoofer Enclosure
• Designed Specifically For 2009-Up Ford F150 Extended Cab Trucks
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

No Fit Icon Doesn't fit your S40

• Single 10" Down Firing Subwoofer Enclosure
• Designed Specifically For 2009-Up Ford F150 Extended Cab Trucks
• Premium Carpeted Finish
• Glued & Braced MDF Construction
• Rounded Edges

NVX UBE-GMC-ACA-G2 BOOST Box (Open Box, Good)

Custom Fit 10” Empty Sealed BOOST Subwoofer Enclosure for select 2017-2023 Acadia and Acadia Limited

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Custom Fit 10” Empty Sealed BOOST Subwoofer Enclosure for select 2017-2023 Acadia and Acadia Limited

• Custom Designed 10" Single Sealed Subwoofer Enclosure
• Enclosure constructed of hand-laid fiberglass
• Carpeted finish to match the interior

No Fit Icon Doesn't fit your S40

• Custom Designed 10" Single Sealed Subwoofer Enclosure
• Enclosure constructed of hand-laid fiberglass
• Carpeted finish to match the interior

NVX VE-GM-SLVECG1-D12S-SMW12D4

Custom Fit Dual 12" Sealed Empty Down Firing Enclosure with Two SMW12D4 for 1999-2006 Chevrolet Silverado and GMC Sierra Extended Cab trucks

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Custom Fit Dual 12" Sealed Empty Down Firing Enclosure with Two SMW12D4 for 1999-2006 Chevrolet Silverado and GMC Sierra Extended Cab trucks

• Included two NVX SMW12D4 Subwoofers
• Custom fit Dual 12" Sealed Unloaded Subwoofer Enclosure
• Fits 1999-2006 Chevrolet Silverado and GMC Sierra Extended Cab trucks
• Finished with premium carpet
• Meticulously hand-assembled
• Crafted from 3/4" MDF (Medium Density Fiberboard)

No Fit Icon Doesn't fit your S40

• Included two NVX SMW12D4 Subwoofers
• Custom fit Dual 12" Sealed Unloaded Subwoofer Enclosure
• Fits 1999-2006 Chevrolet Silverado and GMC Sierra Extended Cab trucks
• Finished with premium carpet
• Meticulously hand-assembled
• Crafted from 3/4" MDF (Medium Density Fiberboard)

NVX VE-TOY-TUNDCG2-D12S-SMW12D4

Custom Fit Dual 12" Sealed Empty Down Firing Enclosure with Two SMW12D4 for 2007-2017 Tundra Double Cab

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Custom Fit Dual 12" Sealed Empty Down Firing Enclosure with Two SMW12D4 for 2007-2017 Tundra Double Cab

• Included Two NVX SMW12D4 Subwoofers Custom fit Dual 12" Sealed Unloaded Subwoofer Enclosure
• Fits 2007-2017 Toyota Tundra Double Cab Trucks
• Finished with premium carpet
• Meticulously hand-assembled
• Crafted from 3/4" MDF (Medium Density Fiberboard)

No Fit Icon Doesn't fit your S40

• Included Two NVX SMW12D4 Subwoofers Custom fit Dual 12" Sealed Unloaded Subwoofer Enclosure
• Fits 2007-2017 Toyota Tundra Double Cab Trucks
• Finished with premium carpet
• Meticulously hand-assembled
• Crafted from 3/4" MDF (Medium Density Fiberboard)

DS18 EBM-FFPRAM19-2X8 (Open Box, Great)

Empty Dual 8" Vented Enclosure for select 2019-2024 Ram 1500

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Empty Dual 8" Vented Enclosure for select 2019-2024 Ram 1500

• Empty 8" Dual Ported Subwoofer Enclosure
• 3/4" medium density fiberboard construction with sprayliner finish
• Vented front-firing design enhances sound projection
• Under seat enclosure mounting

No Fit Icon Doesn't fit your S40

• Empty 8" Dual Ported Subwoofer Enclosure
• 3/4" medium density fiberboard construction with sprayliner finish
• Vented front-firing design enhances sound projection
• Under seat enclosure mounting

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    FAQ Frequently asked questions in Discontinued Empty Custom-fit Subwoofer Boxes


    Empty Custom-fit Subwoofer Boxes Frequently Asked Questions (FAQ)
    An empty custom-fit subwoofer box is a container that is specifically designed to house a car subwoofer and fit into a specific space in your car. Empty custom-fit subwoofer boxes are typically made from MDF or plywood and are built to the exact specifications of your car and subwoofer.
    There are a few reasons why you might need an empty custom-fit subwoofer box. First, empty custom-fit subwoofer boxes can provide a perfect fit for your subwoofer, which can help to improve the sound quality of your system. Second, empty custom-fit subwoofer boxes can help to save space in your car. Third, empty custom-fit subwoofer boxes can be customized to fit your specific needs and preferences.
    When choosing an empty custom-fit subwoofer box, you should consider the following factors: The size of your subwoofer The amount of bass you want The space you have available Your budget Your personal preferences The make and model of your car
    The installation process for an empty custom-fit subwoofer box will vary depending on the make and model of your car. However, most installation processes are relatively simple and can be done at home with basic tools. Here are some general steps involved in installing an empty custom-fit subwoofer box: Remove the old subwoofer box (if applicable). Place the new subwoofer box in the desired location. Secure the subwoofer box in place. Connect the subwoofer to your car stereo. Experiment with different settings to find the sound you like.
    Empty custom-fit subwoofer boxes are available from a variety of retailers, both online and in-store. When choosing a retailer, be sure to compare prices and read reviews to find the best deal.
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