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  • Block Off Plates
  • Custom Made Door Access Block Off Plates - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado 1500 and 2020-2022 HD Trucks
Custom Made Door Access Block Off Plates -Front and Rear Set - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado - Front & Rear Complete Set
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Custom Made Door Access Block Off Plates - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado 1500 and 2020-2022 HD Trucks
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Custom Made Door Access Block Off Plates - Compatible with 2019-2021 GMC Sierra Chevrolet Silverado 1500 and 2020-2022 HD Trucks

Key Features:
  • - Improve your MidBass Performance with these simple plates
  • - Eliminate the "Boomy/Distorted" in your factory system
  • - Creates a "Enclosure" for your speakers inside your door panel
  • - Dramatically Reduces Road Noise for a quieter ride
  • - CNC Machined here at facility out of high-quality HDPE plastic
  • - Sold as a Set


From $99.00 to $207.00




1921GMCBlockOffPlatesSet
Factory Subwoofer Block Off Plate for Rear Wall (Includes Unleashed) - Required for the 2021-2025 Ford F-150 B&O
Factory Subwoofer Block Off Plate for Rear Wall (Includes Unleashed) - Required for the 2021-2025 Ford F-150 B&O
$51.00
Custom Made Door Access Block Off Plates - Compatible with 2022+ Refresh GMC Sierra Chevrolet Silverado
Custom Made Door Access Block Off Plates - Compatible with 2022+ Refresh GMC Sierra Chevrolet Silverado
$102.00 - $247.00

Customer Reviews

Based on 97 reviews
87%
(84)
6%
(6)
4%
(4)
1%
(1)
2%
(2)
100.0
100.0
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

Are you looking to build the ultimate enclosure in your door panel? If so, these block-off access plates will improve your mid-bass performance and deliver the sound you're looking for.

- Hand-made here at our facility just outside of Nashville, TN
- Available for the front doors & rear doors
- Use with sound treatment to ensure the best seal
- Made of high-quality HDPE plastic


May fit other models, contact us for details as we collect this data.

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Customer Reviews

Customer Reviews

Based on 97 reviews
87%
(84)
6%
(6)
4%
(4)
1%
(1)
2%
(2)
100.0
100.0
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.

Load More

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