DEI
DEI XL Damping Material 12.5in x 24in x 4mm
DEI XL Damping Material 12.5in x 24in x 4mm
Couldn't load pickup availability
DEI sound deadening, part number 050221.
Boom Mat Vibration Damping Material is a premium quality damping material providing extreme noise damping for the most demanding commercial and sound competition applications. Interior panels vibrate and generate noise. Boom Mat stops that noise by trapping it between our thick, 4 mil aluminum stiffening top skin and the asphalt free, pure butyl, noise constraining layer.
Plus worry-free no snag adhesion to any interior surface, vertical or overhead, even in the most demanding of temperature extremes. Those quality components are what makes Boom Mat Vibration Damping Material require only 25-50% coverage to get the job done. This saves weight, material cost and installation time.
Key Features
- Easy peel plastic release liner (not a paper backing that tears)
- Enhances stereo performance and sound
- Gives you a quiet and comfortable interior
- Minimal prep & install time
- Performs in extreme temperatures
- Use as a first layer to control noise and dampen vibrations
- 4mm thick
Fitment
- Universal application — listed by part number and specification. Confirm the size and specifications below against your application.
Confirm the model year, the configuration and the part number against your vehicle before ordering.
DEI warrants this product to the original retail purchaser to be free from defects in material and workmanship for as long as the purchaser owns the vehicle on which it was originally installed. Coverage is limited to repair or replacement of the defective part, or a refund of the original purchase price, at the manufacturer's option. The warranty does not cover finish wear, misuse, accident, alteration, installation contrary to the instructions, or products installed on vehicles for race or competition.
Specifications
- Brand: DEI (Design Engineering)
- Manufacturer Part Number: 050221
- Type: Sound Deadening
- Manufacturer Warranty: Limited Lifetime
- Condition: New
- UPC: 607078502216
Images are for illustrative purposes. The product you receive may differ in finish or packaging from the photograph.
WARNING: This product can expose you to chemicals which are known to the State of California to cause cancer and birth defects or other reproductive harm. For more information go to www.P65Warnings.ca.gov.
Share
🛡️
Manufacturer's Warranty — DEI
▾
Manufacturer's Warranty — DEI
DEI (Design Engineering, Inc.) warrants its products to the original retail purchaser, with proof of purchase, to be free from defects in material and workmanship for as long as the purchaser owns the vehicle on which the product was originally installed. If a product is found by DEI to be defective, DEI will, at its option, repair or replace it or refund the original purchase price. Not covered: damage or defects in the finish of a product; products that have been misused, damaged by accident or negligence, altered or modified, installed contrary to DEI’s installation instructions, or repaired by an unauthorized service facility; and products installed on vehicles used for racing or competition. The warranty does not cover labor, removal, installation or reinstallation, freight or transportation charges, or incidental and consequential damages. Claims start with the place of purchase: return the product to where it was bought for a warranty determination within thirty (30) days of purchase. If the claim is not resolved there, DEI issues a Return Goods Authorization and the product is returned to DEI prepaid with the dated proof of purchase and a written description of the problem. For DEI parts bought from PitStopTuning, start your claim with us.
Warranty terms are set by the manufacturer and may change. Contact us if you need help with a warranty claim.

Q&A
No questions yet. Be the first to ask!