DEI Boom Mat Headliner Kit

2018–2026 Jeep Wrangler Unlimited JL

Part #: 50179

Overview

The DEI Boom Mat Headliner Kit is a precision-engineered sound deadening solution designed specifically for the Jeep Wrangler Unlimited JL models from 2018 through 2026. This pre-shaped, peel-and-stick kit enhances the interior aesthetics of Jeep hard tops while significantly reducing unwanted exterior noise and vibrations. Ideal for Jeep owners seeking a quieter cabin environment, the Boom Mat Headliner improves overall ride comfort by minimizing distracting sounds and insulating against heat and weather conditions.

Jeep Wranglers are known for their rugged off-road capability and open-air experience, but this often comes with increased interior noise levels. The Boom Mat Headliner Kit addresses this challenge by delivering a noticeable reduction in noise, allowing occupants to enjoy clearer conversations and enhanced audio system performance without interference from road or wind noise.

Key Features

This comprehensive sound deadening headliner kit offers multiple benefits tailored to the Jeep Wrangler Unlimited JL:

• Reduces interior noise levels by 3 to 4 decibels for a quieter cabin
• Minimizes vibrations and rattles from the hard top roof
• Improves in-cabin acoustics, enhancing audio system clarity
• Provides radiant heat insulation to reduce roof heat transfer
• Pre-shaped, peel-and-stick design for straightforward installation
• Durable open-cell polyurethane foam with a polymer surface finish
• Available in stylish grey to complement Jeep interior aesthetics
• Specifically engineered for 4-door Jeep Wrangler JL models, 2018 and newer
• Complete 13-piece kit covering the entire headliner area

Construction & Design

The Boom Mat Headliner Kit is constructed from high-quality open-cell polyurethane foam, treated with a polymer surface finish to ensure durability and longevity. This material effectively absorbs sound waves and dampens vibrations, while also providing thermal insulation to reduce heat buildup inside the vehicle. The kit’s components are precision-cut and pre-shaped to fit the contours of the Jeep Wrangler JL hard top, ensuring a seamless fit and professional appearance without the need for trimming or modification.

The grey finish offers a subtle, factory-like look that integrates well with the Jeep’s interior design, enhancing both function and style.

Performance & Sound

Tested to reduce noise levels by 3 to 4 decibels, the Boom Mat Headliner Kit delivers a significant improvement in cabin quietness. This reduction in ambient noise makes it easier to hold conversations and enjoy music without raising the volume excessively. By dampening vibrations and blocking external sounds, the kit enhances the overall driving experience, especially during highway cruising or off-road adventures where wind and road noise can be intrusive.

Installation & Fitment

Installation is simple and user-friendly thanks to the kit’s peel-and-stick design. Each piece is pre-cut to fit the Jeep Wrangler Unlimited JL hard top perfectly, allowing for a quick and clean installation without the need for special tools or adhesives. The kit adheres directly to the interior surface of the hard top, providing immediate sound deadening and insulation benefits. No permanent modifications are required, making it an ideal upgrade for Jeep owners who want to maintain their vehicle’s factory condition.

What's Included

• 13 pre-shaped sound deadening foam pieces
• Complete coverage for the Jeep Wrangler JL hard top interior
• Installation instructions for easy application

Ideal For

The DEI Boom Mat Headliner Kit is perfect for Jeep Wrangler Unlimited JL owners who want to:

• Reduce interior noise and vibrations for a more comfortable ride
• Improve audio system clarity and overall cabin acoustics
• Enhance thermal insulation against heat from the roof
• Maintain a clean, factory-like interior appearance
• Enjoy off-road and daily driving with less distracting noise

Design Engineering, Inc. (DEI) specializes in heat and sound management products for performance vehicles, including exhaust/header wraps, sleeves, reflective heat barriers, and shields. Controlling heat under the hood and near sensitive components is a key reliability upgrade for turbo builds, track cars, and tight engine bays—making DEI a staple brand in motorsports thermal protection.