The 10 Best 2008 Silverado Ext Cab Sub Boxes (2022 reviews)

2008 silverado ext cab sub boxes
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Are you looking for collection of best 2008 silverado ext cab sub boxs ? Your search ends here.

Our review process:

Our Top Picks:

Best Overall:
Buy: Skar Audio 2008 Silverado Ext Cab Sub Box
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Best For More Air:
Buy: Skar Audio Subwoofer Enclosure
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Best For Fast Delivery:
Buy: Atrend 2008 Silverado Ext Cab Sub Box
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Best For Extended Cab:
Buy: American Sound Connection Great Box
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Best For Better Bass:
Buy: Atrend Duel Inch Subwoofer Box
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Best For Sound Quality:
Buy: American Sound Connection 2008 Silverado Ext Cab Sub Box
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Best For Easy Install:
Buy: Q Power 2008 Silverado Ext Cab Sub Box
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Best For Deepest Bass:
Buy: Q Power Great Box
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Best For Sealed Box:
Buy: Soundbox Great Box
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Best For Bare Wire:
Buy: Soundbox 2008 Silverado Ext Cab Sub Box
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Best Overall: Skar Audio 2008 Silverado Ext Cab Sub Box

Skar Audio 2008 Silverado Ext Cab Sub Box
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Here, we review a box that manages to win our hearts. It's the Skar Audio 2008 Silverado Ext Cab Sub Box and it's widely considered as one of the all-around great boxes you can buy. The skar audio 2008 silverado ext cab sub box built very heavy, is best for good fit and it will for excellent value. Manufacturer says: Internally, we line several walls of the enclosure with poly-fill to enhance the overall versatility and depth of sound that this enclosure reproduces with any given subwoofer. The differentiating features that put this box in a league of its own do n't stop there though.

The box sounds great and has a great design. Above all, the skar audio 2008 silverado extcab sub box allows for deep bass, It is very loud and has outstanding design.

Almost all buyers found that the box was for an 8" (8 inch) subs. In addition, they also found that the box was made from quality materials. In addition, they strongly agree that this box only sounds good in a suv, does n't matter what sub is in it.

Top Customer Quotes:
  • This is designed for maximum bass and responsiveness.
  • This is perfect for small spaces like that one.
  • Kerf (rounded) port design - allows for deep, accurate, and responsive bass.
  • This will fit shallow 10 inch woofers.

Best For More Air: Skar Audio Subwoofer Enclosure

Skar Audio Subwoofer Enclosure
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The Skar Audio Subwoofer Enclosure might be a relatively new release, but it's still nothing short of impressive this year, thanks to multiple price cuts and added new features over the past few months. The skar audio subwoofer enclosure provides great value, constructed well and it sounds incredible. Single chamber 10" ported subwoofer enclosure. Further, the box sounds great, It is made with great construction and has a sturdy design.

Finally, the skar audio subwoofer enclosure is good for very good quality and it is designed for more air.

Most customers agree that the box features a 1"" wide kerf style port which means that the port construction utilizes the curves typically found only in high-end professional enclosures, allowing the box to offer deeper and more accurate bass. And, a few also found that the box will work for all 10” car audio subwoofers. Moreover, a few strongly agree that this subwoofer box is very well designed and well made. It sounds really good and gets pretty low for a prefab. To sum up, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • This is a perfect fit, no cutting needed.
  • This is built to make any sub sound better.
  • This is made for a 12" sub not an 8" sub.
  • This is easy to correct though.

Best For Fast Delivery: Atrend 2008 Silverado Ext Cab Sub Box

Atrend 2008 Silverado Ext Cab Sub Box
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The Atrend 2008 Silverado Ext Cab Sub Box should be able to handle its purpose and duties with ease. The atrend 2008 silveradoext cab sub box is designed to meet and exceed even the harshest conditions while offering superior sound and build quality. Manufacturer says: We proudly introduce the bbox line of vehicle specific enclosures for a wide variety of applications. In addition, it has a mounting depth of less than 65 inchesimportant.

The box has internal volume, it fits very well and has a sturdy design. Most importantly, the atrend 2008 silverado ext cabsub box is designed for optimum bass response and low frequency reproduction, which is ideal for lower - profile sound quality subwoofers.

Almost all customers agree that the box is a sealed box divided into 2 10” subs equally. Also, they also found that the box was the only option on the ram crew cab. In addition, a few say that the box itself is well made and the speaker ports were high quality.

Top Customer Quotes:
  • It is pretty well built... worth the money, that is for sure.
  • This was designed andengineered specifically for 2002.
  • This is made with fast shipping, it looks great and has a good looking design.
  • This is perfectly under the seat and sounds amazing.

Best For Extended Cab: American Sound Connection Great Box

American Sound Connection Great Box
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American Sound Connection line of boxes comes in a pretty wide variety of styles, so you can definitely find one that suits your individual preferences and needs. The American sound connection box is designed for a good fit and it looks great. Manufacturer says: We finally have a custom - fitted enclosure available for the new body - style Chevy 07. This dual 12 " enclosure is designed to fit under the rear bench seat and is a down - firing model.

Above all, the American sound connection box is compatible with a wide range of sub brands and models, but entry - level and flat piston subwoofers tend to work best.

Most customers think that the box fits perfectly. The subs will be facing down towards the floor. And, they also found that the box fits both chevy and gmc 08. Moreover, a few also found that the box fit with some sanding but there isn't enough room or clearance for the sub to flex. In conclusion, many buyers have used the box for more than a few months without letup, and it shows no sign of giving up.

Top Customer Quotes:
  • This does not have to be raised or modified in any way.
  • This fits a 4 door crew cab for 2007.
  • It sounds loud, it is great quality and has a great design.
  • This will be in an entened cab but nota four - door.

Best For Better Bass: Atrend Duel Inch Subwoofer Box

Atrend Duel Inch Subwoofer Box
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The features department is where the duel inch subwoofer box truly manages to shine. The Atrend Duel Inch Subwoofer Box is great for better bass and it is very deep. The manufacturer says: Our speaker boxes are airtight and resonant free to reduce rattles in your speakers and improve the overall sound quality of your sound system. The bbox 10 inch dual - sealed subwoofer enclosure is designed for optimum bass response and low frequency reproduction, which is ideal for lower - profile sound - quality subwoofers.

The box fits snug, provides great value and it fits like a glove. Also, it is used for speaker mounting depth, It creates great sound and has a great design. Lastly, the atrend duel inch subwoofer box has a mounting hole, fits great and it fits pretty well.

Most buyers quickly discovered that the box has a depth of 6.25 .. it should be fine. Further, they also found that the box is perfect for a 2005 1500hd. And, they say that the subwoofer box is angled the mounting depth is n't truly 6. In conclusion, buyers found this to be one of the best boxes for daily purposes.

Top Customer Quotes:
  • This is really well made, sounds amazing, and looks good.
  • This makes for solid construction, fits perfectly and it allows for great fit.
  • This is not screwed together, it is glued and brad nailed together.
  • The manufacturer says: our speaker enclosures turn your truck into a music machine.

Best For Sound Quality: American Sound Connection 2008 Silverado Ext Cab Sub Box

American Sound Connection 2008 Silverado Ext Cab Sub Box
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The American sound connection 2008silverado EXT cab sub box's material feels more premium than its price would suggest. The American sound connection 2008 silverado EXT cabsub boxes are then liquid nailed, nailed and completely sealed. All the custom series enclosures are made to fit precisely into your chevy silverado 99. Further, this is a dual 12" down - firing model, Why down firing.

The box fits great, constructed well and it works great. In addition, it is made for deep bass and it looks great. Most importantly, the American sound connection 2008silverado EXT cab sub box fits perfectly. is made for quick delivery and it is designed for good fit.

Almost all customers quickly discovered that the box fitted and was at a great price. Also, a few say that the box fits and sounds amazing, plus it fits gmt800 extended cabs. Further, they strongly agree that the mounting depth of this box is 5 3/4 and that sub is 5 3/4. In conclusion, at the price, they believe that they got a steal of a deal with it.

Top Customer Quotes:
  • This fits nice under the rear seat of a 2003 chevy 1500 ext cab.
  • This will fit but they have to be within 5 3/4.
  • This fits nice and snug and mounts the amp on the side.
  • This allows for great fit and it has an install location.

Best For Easy Install: Q Power 2008 Silverado Ext Cab Sub Box

Q Power 2008 Silverado Ext Cab Sub Box
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The Q Power 2008 Silverado Ext Cab Sub Box's material feels more premium than its price would suggest. The q power 2008 silveradoext cab subbox fits well, makes for a great buy, It is made for easy installing and has a great design. Turn your ride into a sound machine with the help of the q-power 12" subwoofer enclosure. Further, it fits perfectly. is made with fast shipping and it fits very well.

Lastly, the q power 2008 silverado extcab sub box is made from solid 5/8" mdf construction and features charcoal carpet covering, and terminal cup connectors.

Most buyers found that the box was already covered and the color matched. Moreover, a few also found that the box fits perfectly under the seat and sounds great and easy to install. In addition, a few also found that the depth from the outside rim of the box to the bottom is 7 1/8 inches. I hope this helps.

Top Customer Quotes:
  • **please note: this subbox is made to fire downward**.
  • This is perfect and sounds very good.
  • This fits great and it is brand new.
  • Brand new **q-power 12"** custom gmc/chevy ext cab '99-06 subwoofer box.

Best For Deepest Bass: Q Power Great Box

Q Power Great Box
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Best part: Q Power Great Box costs comparatively little and it is available to ship in 24 hours. The q power great box is custom made for gmc and Chevy silverado crew cab trucks, model year 2007 to 2013. Turn your ride into a sound machine with the help of the q-power 12" subwoofer enclosure. Moreover, it is designed to fit underneath the rear seats and boasts .90 cubic feet of air space. Most importantly, the q power great box is built for the deepest bass.

Almost all customers quickly discovered that the box does look like one and made them for all years of trucks. In addition, a few strongly agree that the box will reverberate in the middle at high levels. Overall, many customers have used the q power great box for more than a few months without any problems, and it shows no sign of giving up.

Top Customer Quotes:
  • This fits in a 2015 sierra crew cab real well.
  • "Q bomb" is etched on the top of the box.
  • This makes all the difference in the world.
  • This works in 2007 new body style and up.

Best For Sealed Box: Soundbox Great Box

Soundbox Great Box
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The soundbox box's superior materials make sure that it ages well with use. The Soundbox Great Box allows for a great deal and it looks great. Make sure this fits by entering your model number. Moreover, it fits great and it is great for top quality.

Most importantly, the soundbox box is designed with bare wire and it is made of good material.

One customer says - "Sealed box and enough room for the speaker to hit downward. ". Almost all customers opine that the box fits perfectly very well.

Why We Like This:
  • Fitment: fits under rear seat- driver 's side.
  • Silverado/ sierra crew cab single 12" subwoofer enclosure sub box 2008-2013.
  • Enclosure volume (cubic feet per chamber): .83 cu. Feet/ mounting depth: 5-1/2.
  • This enclosure fits: silverado/ sierra crew cab 2008-2013 (will fit new body 2007 model).

Best For Bare Wire: Soundbox 2008 Silverado Ext Cab Sub Box

Soundbox 2008 Silverado Ext Cab Sub Box
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Soundbox offers a variety of boxes for personal choice and yet maintains quality in all the variants. Make sure this fits by entering your model number. And, the box is designed for bare wire and it has a cutout diameter. The box is easy to maintain and fits perfectly for your daily purpose.

Why We Like This:
  • Dimensions: 50?1/2?w x 10? Fh x 5? Rh x 12? D.
  • Enclosure volume (cubic feet per chamber): .83 cu. Feet/ mounting depth: 5-1/2.
  • Chevy silverado/ gmc sierra crew cab dual 12" subwoofer enclosure sub box 2008-2013.