I would like to apply velcro to the boom mat in order to start collecting patches. Would I be able to safely apply an adhesive and add the velcro?

I don’t think that would be advisable. The boom mat has a very thin top membrane and I think it would tear.

Will this fit a 2018 jeep wrangler unlimited sport jl model ?

Yes this kit will fit a JL model Jeep.

Will this fit a 2020 4 door wrangler sport?

Hello. Yes, 050168 will fit a 2020 4dr JL

Do velcro backed patches stick to the headliners?

No. The headliner has pleather on the top. I'd suggest perhaps using some 3M backed Hook and Loop and sticking it to where you'd like your patches.

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Design Engineering Headliner for 2011-2018 Wrangler JK 4-Door, Black | 9-Piece Sound Deadening Kit | Reduces Road Noise & Roof Heat | Improves Interior Acoustics | Pre-Cut Peel & Stick

Product ID: 2266611

Details

Brand
Design
Global Trade Identification Number
Item Thickness
1 Inches
Material
Fiberglass
Product Dimensions
1"L x 1"W

🔇3-4 dB noise reduction

🌡️Thermal insulation for all seasons

🛠️Peel-and-stick, no cutting

R8544

Duties & taxes included

In stock

Sold byAmazon South AfricaDelivered byDesertcartCustomer service byDesertcartReturns14 days · 30 with PRO

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Description

🔊 Silence the chaos, amplify the adventure.

ALL WEATHER COMFORT - Advanced thermal insulation keeps your cabin cool in summer and cozy in winter, no matter the terrain.
EFFORTLESS DIY UPGRADE - Pre-shaped peel-and-stick panels guarantee a flawless factory fit—no trimming or tools needed.
RUGGED REFINED FINISH - Durable black finish blends seamlessly with Jeep interiors and resists sagging or wear under harsh conditions.
WHISPER QUIET JEEP RIDES - Slash interior noise by up to 4 decibels for crystal-clear conversations and premium audio clarity.
TAILORED FOR JEEP WRANGLER JL - Specifically engineered for 4-door Jeep Wrangler JL (2018+), ensuring perfect coverage and performance.

The Design Engineering Boom Mat Black Sound Deadening Headliner is a custom-fit, peel-and-stick interior upgrade for 4-door Jeep Wrangler JL (2018+). It reduces cabin noise by 3–4 decibels, enhances audio clarity, and provides thermal insulation for year-round comfort. Its durable black finish resists wear and fits perfectly without cutting, delivering a premium, quieter ride on and off-road.

Specifications

ASIN	B0071L5WJA
Best Sellers Rank	#94,258 in Automotive ( See Top 100 in Automotive ) #27 in Automotive Headliners
Brand Name	Design Engineering
Coverage	Entire headliner of a 4-door Jeep Wrangler
Customer Reviews	4.3 4.3 out of 5 stars (190)
Global Trade Identification Number	00607078501370
Included Components	Hard Top Accessories
Item Dimensions L x W	1"L x 1"W
Item Thickness	1 Inches
Item Type Name	Sound Deadening Headliner
Item Weight	7.2 Pounds
Manufacturer	DEI
Manufacturer Part Number	50137
Manufacturer Warranty Description	Manufacturer Warranty
Material Type	Fiberglass, Neoprene, Rubber
Model Number	50137
UPC	607078501370
Unit Count	1.0 Count

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