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  • Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks
Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks - Level 3 - Level 3
Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks - Level 3 - Level 3
Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks - Level 3 - Level 3
Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks - Level 3 - Level 3
Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks - Level 2 - Level 2
Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks - Level 1 - Level 1
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Sound Treatment Packages for the 2019-2021 GMC Sierra - Chevrolet Silverado CrewCab Trucks

Key Features:
  • - All Options include our Custom Made Block Off Plates, Front and Rear
  • - Level 3: 4 Boxes (44 sqft) of BlackHole MAT plus 144 BlackHole Tiles
  • - Level 2: 5 Boxes (55 sqft) of BlackHole MAT plus 72 BlackHole Tiles
  • - Level 1: 6 Boxes (66 sqft) of BlackHole MAT plus 18 BlackHole Tiles
  • - Improve Stereo Performance and Drastically Reduce Road Noise
  • - Includes enough Sound Treatment for 3-layers on the four doors and rear wall


From $838.00 to $1,351.00




ST-GMC-19-lvl1

Customer Reviews

Based on 97 reviews
87%
(84)
6%
(6)
4%
(4)
1%
(1)
2%
(2)
N
Nick CRUTCHFIELD (Madison, TN, US)
Great product

Great fit and very solid thick dense plastic very well made had to order the rears too.

User picture
S
Steve from Omaha (Omaha, NE, US)
2025 Ford F150 Platinum Plus

Purchased the block off plates for my new truck. I am extremely satisfied with the quality & fit. Made a huge difference in my Focal speaker performance in the doors.

S
Surburban4life (Spring, TX, US)
Good product

It helps eliminate external noise and appears to bounce back sound.

F
Felix Medrano (San Antonio, TX, US)
👌🏽👌🏽

fit like a glove, easy install!

J
Jacob Ohio (Sunbury, OH, US)
Great product, better company

while the product is as advertised, works great and I’d highly recommend, I also want to shout out the company. When it became clear that my order was not going to arrive by install date with a third party, sounds good stepped up. As a result of a simple call they shifted production schedules and expedited shifting to getting me my order in time. Despite me telling them that was far from necessary and I could reschedule. Unlike any company these days. Kudos.

A
A.Beaty (Conyers, GA, US)
Sturdy and well designed

Easily installed

J
Jack Fuller (Jacksonville, FL, US)
Door Panel Delight

They are everything I expected and more. good product. Your follow up was great and the answers were excellant.

J
Joseph Z (Commerce City, CO, US)
Well Worth It

If you are going to be forced to install these alone, use a little double sided tape to hold up the plates, while your pre drilling the holes. Awesome product and very happy I did this, my Dynaudio 8s sound very good now

D
Dan A (Wylie, TX, US)
Essential upgrade for your F150!

The quality of the block off plate is amazing and truly does help with midbass performance. Definitely an essential upgrade in combination with sound deadening. The guys at Sounds Good are also top notch and super helpful!

S
Shane Broussard (Cincinnati, OH, US)
Excellent Upgrade for Noise Reduction

Excellent upgrade to any car for road noise reduction and increasing the performance of your radio. Would have given 5 stars but there were no install instructions included. Not really a big deal, but it would be a good thing.

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Product Description

Upgrade your 2019-2021 GMC Sierra or Chevrolet Silverado CrewCab truck with our Sound Treatment Packages. Choose from Level 1, 2, or 3 to drastically reduce road noise and improve stereo performance. Includes custom-made block off plates and enough sound treatment for three layers on doors and rear wall.

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Customer Reviews

Customer Reviews

Based on 97 reviews
87%
(84)
6%
(6)
4%
(4)
1%
(1)
2%
(2)
N
Nick CRUTCHFIELD (Madison, TN, US)
Great product

Great fit and very solid thick dense plastic very well made had to order the rears too.

User picture
S
Steve from Omaha (Omaha, NE, US)
2025 Ford F150 Platinum Plus

Purchased the block off plates for my new truck. I am extremely satisfied with the quality & fit. Made a huge difference in my Focal speaker performance in the doors.

S
Surburban4life (Spring, TX, US)
Good product

It helps eliminate external noise and appears to bounce back sound.

F
Felix Medrano (San Antonio, TX, US)
👌🏽👌🏽

fit like a glove, easy install!

J
Jacob Ohio (Sunbury, OH, US)
Great product, better company

while the product is as advertised, works great and I’d highly recommend, I also want to shout out the company. When it became clear that my order was not going to arrive by install date with a third party, sounds good stepped up. As a result of a simple call they shifted production schedules and expedited shifting to getting me my order in time. Despite me telling them that was far from necessary and I could reschedule. Unlike any company these days. Kudos.

A
A.Beaty (Conyers, GA, US)
Sturdy and well designed

Easily installed

J
Jack Fuller (Jacksonville, FL, US)
Door Panel Delight

They are everything I expected and more. good product. Your follow up was great and the answers were excellant.

J
Joseph Z (Commerce City, CO, US)
Well Worth It

If you are going to be forced to install these alone, use a little double sided tape to hold up the plates, while your pre drilling the holes. Awesome product and very happy I did this, my Dynaudio 8s sound very good now

D
Dan A (Wylie, TX, US)
Essential upgrade for your F150!

The quality of the block off plate is amazing and truly does help with midbass performance. Definitely an essential upgrade in combination with sound deadening. The guys at Sounds Good are also top notch and super helpful!

S
Shane Broussard (Cincinnati, OH, US)
Excellent Upgrade for Noise Reduction

Excellent upgrade to any car for road noise reduction and increasing the performance of your radio. Would have given 5 stars but there were no install instructions included. Not really a big deal, but it would be a good thing.

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