Bill Smith
Founder, 1929-2014
Speedy Bill
Since 1952
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Shop Street Rod Body, Interior & Gauges At Speedway Motors

Speedway Motors is the street rodder's source for body parts, gauges, and interior accessories! Find all the essential fiberglass body components, gauge sets by Stewart Warner and Auto Meter, and hot rod bomber seats, in our online catalog. While you are there, check out our full line of script emblems, rear view mirrors, windshields, fiberglass hoods and grilles. Complete your hot rod with sound proof insulation from Dynalite and Hushmat. Don't forget about Speedway's hot rod bomber seats for your traditional street rod, too!

"Street Rod, Sound Dampening Kits" Page 1 of 1

  • Dynamat 21100 Dynapad Thermal & Sound Insulation 3/8 Inch Thick
    Dynamat 21100 Dynapad Thermal & Sound Insulation 3/8 Inch Thick
    (Part #31021100)
    x
                

    You may not be Chip Foose, but you can use the same Dynamat products Chip does. By first laying down a layer of Dynamat Xtreme, you will make your car quiet and cooler. Add another layer of Dynaliner and you will make it even cooler. Or a layer of Dynapad and make it quieter. A Dyna-Roller will make installation easy. 

    DynaPad is a four-layer composite barrier material utilizing a 1 pound per square foot vinyl barrier that is sandwiched between two layers of 3/16 inch thick acoustic foam with a urethane top layer. DynaPad is designed to provide an under carpet sound barrier in automotive interiors, residential and commercial dwellings. The material can withstand temperature ranges between -40ºF and +225ºF (-40ºC to +107ºC)

    This DynaPad is used primarily on the floor. DynaPad is optimized for use under carpet in automotive, residential and commercial applications. It is also used in other applications requiring acoustic barrier foam systems.

    Dynapad Information Sheet (PDF)

  • DEi 050113 Under Carpet Lite, Sound Absorbion & Insulation, 54 x 72 In
    DEi 050113 Under Carpet Lite, Sound Absorbion & Insulation, 54 x 72 In
    (Part #35650113)
    x
                Please view the product's page for more information
            
  • DEi 050110 Under Carpet Lite, Sound Absorbion & Insulation, 24 x 54 In
    DEi 050110 Under Carpet Lite, Sound Absorbion & Insulation, 24 x 54 In
    (Part #35650110)
    x
                Please view the product's page for more information
            
  • DEi 050507 Boom Mat Floor & Tunnel Shield II 21 x 24 Inch
    DEi 050507 Boom Mat Floor & Tunnel Shield II 21 x 24 Inch
    (Part #35650507)
    x
                

    Boom Mat offers this heat and sound insulation floor and tunnel shield in a 21" x 24" sheet. Protect yourself from radiant heat from entering the driver compartment and also from road, tire, and engine noise. Boom Mat has constructed this shield from 10 mil aluminum bonded to a finely woven layer of high temperature resistant glass fiber. Perfect for firewalls, under-vehicle, floor pans, oil tank box areas, transmission tunnels, wrapping fuel cells and under hoods. Will also work great for any application you can think of because it can adhere to almost any surface including fiberglass.

    • Peel, trim & stick application
    • Use to shield & reflect unwanted heat
    • Only 3/16” thick
    • Aggressive adhesive backing
    • Withstands 1750°F direct continuous
    • 21"x24"

    Floor & Tunnel Shield Installation Instructions (PDF)

    Floor and Tunnel Shield Frequently Asked Questions (PDF)

    Learn more about identifying and solving vehicle noise issues by reading Boom Mat's tech article. Science of Noise.

  • DEi 050509 Boom Mat Floor & Tunnel Shield II 42 x 48 Inch
    DEi 050509 Boom Mat Floor & Tunnel Shield II 42 x 48 Inch
    (Part #35650509)
    x
                

    Boom Mat offers this heat and sound insulation floor and tunnel shield in a 42" x 48" sheet. Protect yourself from radiant heat from entering the driver compartment and also from road, tire, and engine noise. Boom Mat has constructed this shield from 10 mil aluminum bonded to a finely woven layer of high temperature resistant glass fiber. Perfect for firewalls, under-vehicle, floor pans, oil tank box areas, transmission tunnels, wrapping fuel cells and under hoods. Will also work great for any application you can think of because it can adhere to almost any surface including fiberglass.

    • Peel, trim & stick application
    • Use to shield & reflect unwanted heat
    • Only 3/16” thick
    • Aggressive adhesive backing
    • Withstands 1750°F direct continuous
    • 42"x48"

    Floor & Tunnel Shield Installation Instructions (PDF)

    Floor and Tunnel Shield Frequently Asked Questions (PDF)

    Learn more about identifying and solving vehicle noise issues by reading Boom Mat's tech article. Science of Noise.

  • DEi 050220 Boom Mat Spray On Sound Deadening, 18 oz. Can
    DEi 050220 Boom Mat Spray On Sound Deadening, 18 oz. Can
    (Part #35650220)
    x
                
    Reduce unwanted road noise and deaden vibrations in hard to reach places with Boom Mat's new Spray On sound deadener. Works perfect for trunk interiors, fender wells, undercarriage, body panels, rear quarters, inside door panels, and many more. Boom Mat Spray On also works as a thermal barrier to insulate against unwanted heat. Will eliminate any unwanted sound, vibration, or heat in any vehicle!
    • Reduce unwanted road noise and vibration
    • Won't crack or chip
    • Can be applied in multiple layers
    • Helps prevent rust
    • Paintable in 6 hours
    • Single can will cover approximately 20 sq. ft.
    • Handles temperatures up to 300 F
  • Dynamat 10455 Xtreme Bulk Pack Cut-to-Fit Thermal and Sound Insulation
    Dynamat 10455 Xtreme Bulk Pack Cut-to-Fit Thermal and Sound Insulation
    (Part #31010455)
    x
                

    Reduce road noise and vibration while making your stereo sound twice as good fast with Dynamat. By first laying down a layer of Dynamat Xtreme, you will make your car quiet and cooler. Add another layer of Dynaliner and you will make it even cooler. Or a layer of Dynapad and make it quieter. A Dyna-Roller will make installation easy. 

    Kit contains nine 18" x 32" pieces (36 square feet) of Dynamat Xtreme (.067" thick) for rear decks, doors, floors and trunk floors. Unlike Dynamat Original, Dynamat Xtreme is also recommended for trunk lids, roofs, quarter panels, under-hood installations and multi-purpose use.

    Simply measure your application to order the necessary amount. This product dramatically cuts heat and noise from inside the vehicle for more enjoyable cruising and every day driving.

    • Use to get more bass, more music, lower road noise and better sound
    • Kit contains (9) nine 18" x 32" pieces (36 square feet)
    • Simply measure and cut to fit your application

    Dynamat Information Sheet (PDF)

    Dynamat Tech Spec Sheet (PDF)

  • DEi 050120 Boom Mat Leather Look Sound Barrier, 24 x 48 Inch
    DEi 050120 Boom Mat Leather Look Sound Barrier, 24 x 48 Inch
    (Part #35650120)
    x
                Please view the product's page for more information
            
  • Dynamat 11103 Dynaliner Thermal & Sound Insulation, 1/2 Inch Thick
    Dynamat 11103 Dynaliner Thermal & Sound Insulation, 1/2 Inch Thick
    (Part #31011103)
    x
                

    Dynaliner is the perfect ultra light weight thermal and sound insulator to use on top of Dynamat. This durable crush and tear resistant material has the highest heat blocking properties available in a single layer synthetic foam-type material.

    Dynaliner isn’t affected by oil and does not absorb water. Dynaliner provides acoustic isolation and excellent thermal insulation for roof, firewall, floor, quarter panels, doors and even as a hoodliner.

    • IsolateVibrations
    • Reduce Noise
    • Block Heat
    • Peel and Stick Application
    • Oil and Water Resistant
    • Ultra Light and Flexible
    Application: A high efficiency, general purpose thermo- acoustic foam available in 1/8”, 1/4” and 1/2” thickness. Dynaliner provides high acoustic absorption and excellent thermal insulation for roof, firewall, floor, quarter panels, doors and more. See chart for application recommendations.

    Dynamat Information Sheet

    Dynamat Tech Spec Sheet 

    Dynamat Application Recommendation Chart

  • Garage Sale - Total Performance Kool-Mat Floor Kit
    Garage Sale
    Garage Sale - Total Performance Kool-Mat Floor Kit
    (Part #715DD800)
    x
                

    Kool-Mat floor insulation kit. Ideal for race use, Kool-Mat is made from silcone and fiberglass to help protect against heat.

     

    This is garage sale priced because it has been discontinued.

     

    NO WARRANTY, NO RETURNS ON GARAGE SALE ITEMS  

  • DEi 050111 Under Carpet Lite, Sound Absorbion & Insulation, 48 x 54 In
    DEi 050111 Under Carpet Lite, Sound Absorbion & Insulation, 48 x 54 In
    (Part #35650111)
    x
                Please view the product's page for more information
            
  • DEi 050130 Boom Mat Under Hood Thermal Acoustic Lining, 32 x 54 Inch
    DEi 050130 Boom Mat Under Hood Thermal Acoustic Lining, 32 x 54 Inch
    (Part #35650130)
    x
                Please view the product's page for more information
            
  • HushMat 10600 Ultra License Plate Kit
    HushMat 10600 Ultra License Plate Kit
    (Part #91080507)
    x
                The HushMat Ultra License Plate Kit is a universal kit designed to stop license plate rattles. HushMat Ultra is self adhesive and adheres to the back of the tag. This kit is designed to eliminate the nuisance rattling of your license plate due to subwoofer vibration or loose fitting frames. We also include a HushMat license plate frame in every box! 
    • Withstands temperatures from -30 degrees up to +400 degrees Fahrenheit
    • Self Adhesive peel and stick – no secondary glue and NO spray
    • Trims with razor knife or household scissors

    See the Complete line of HushMat kits and materials to complete your build project or to simply create a Quiet, Cool and Comfortable ride in your daily driver.

    Article: Corvette Restorer Magazine (PDF)

    Article: GoodGuys (PDF)

    HushMat Ultra Specs (PDF)

  • HushMat Ultra Door Kit - Thermal and Sound Insulation
    HushMat Ultra Door Kit - Thermal and Sound Insulation
    (Part #91080505)
    x
                Please view the product's page for more information
            
  • Dynamat 10007 Pro Rollers
    $19.99
    Dynamat 10007 Pro Rollers
    (Part #31010007)
    x
                2" (50mm) wide solid rubber roller. Professional tool for applying Dynamat and  ensuring proper adhesion with professional-looking results.  
            
  • HushMat Ultra Starter Kit
    $38.99
    Product Rating: 5.00 Stars
    HushMat Ultra Starter Kit
    (Part #91080500)
    x
                Please view the product's page for more information
            
  • DEi 050104 Boom Mat Moldable Noise Barrier, 48 x 54 Inch
    DEi 050104 Boom Mat Moldable Noise Barrier, 48 x 54 Inch
    (Part #35650104)
    x
                Please view the product's page for more information
            
  • Dynamat 11102 Dynaliner Thermal & Sound Insulation, 1/4 Inch Thick
    Dynamat 11102 Dynaliner Thermal & Sound Insulation, 1/4 Inch Thick
    (Part #31011102)
    x
                

    Dynaliner is the perfect ultra light weight thermal and sound insulator to use on top of Dynamat. This durable crush and tear resistant material has the highest heat blocking properties available in a single layer synthetic foam-type material.

    Dynaliner isn’t affected by oil and does not absorb water. Dynaliner provides acoustic isolation and excellent thermal insulation for roof, firewall, floor, quarter panels, doors and even as a hoodliner.

    • IsolateVibrations
    • Reduce Noise
    • Block Heat
    • Peel and Stick Application
    • Oil and Water Resistant
    • Ultra Light and Flexible
    Application: A high efficiency, general purpose thermo- acoustic foam available in 1/8”, 1/4” and 1/2” thickness. Dynaliner provides high acoustic absorption and excellent thermal insulation for roof, firewall, floor, quarter panels, doors and more. See chart for application recommendations.

    Dynamat Information Sheet

    Dynamat Tech Spec Sheet 

    Dynamat Application Recommendation Chart

  • DEi 050101 Boom Mat Under Carpet Sound Deadening Layer, 48 x 54 Inch
    DEi 050101 Boom Mat Under Carpet Sound Deadening Layer, 48 x 54 Inch
    (Part #35650101)
    x
                Please view the product's page for more information
            
  • LizardSkin 50100 Ceramic Thermal & Sound Insulation, 2 Gallon
    LizardSkin 50100 Ceramic Thermal & Sound Insulation, 2 Gallon
    (Part #91044050)
    x
                Please view the product's page for more information
            
  • DEi 050230 Boom Mat Heavy Duty Damping Material, 24 x 54 Inch
    DEi 050230 Boom Mat Heavy Duty Damping Material, 24 x 54 Inch
    (Part #35650230)
    x
                Please view the product's page for more information
            
  • Dynamat 10465 Xtreme Mega Pack
    $399.99
    Product Rating: 4.50 Stars
    Dynamat 10465 Xtreme Mega Pack
    (Part #31010465)
    x
                

    You may not be Chip Foose, but you can use the same Dynamat products Chip does. By first laying down a layer of Dynamat Xtreme, you will make your car quiet and cooler. Add another layer of Dynaliner and you will make it even cooler. Or a layer of Dynapad and make it quieter. A Dyna-Roller will make installation easy. 

    This industrial-sized Mega Pak contains nine 24" x 48" flat sheets of Dynamat Xtreme for a total of 72 sq. ft. For complete coverage on rear decks, doors, floors and trunks.

    Dynamat Mega Pak Contents: (9) 24"x 48" (609mm x 1219mm) sheets of Dynamat Xtreme and is .067 thick.

    Application: Use on rear decks, doors, floors and the trunk to get more bass, more music, lower road noise and better sound. Create a solid, quiet luxury-car feel.

    Dynamat Information Sheet

    Dynamat Tech Spec Sheet 

  • Dynamat 11101 Dynaliner Thermal & Sound Insulation, 1/8 Inch Thick
    Dynamat 11101 Dynaliner Thermal & Sound Insulation, 1/8 Inch Thick
    (Part #31011101)
    x
                

    Dynaliner is the perfect ultra light weight thermal and sound insulator to use on top of Dynamat. This durable crush and tear resistant material has the highest heat blocking properties available in a single layer synthetic foam-type material.

    Dynaliner isn’t affected by oil and does not absorb water. Dynaliner provides acoustic isolation and excellent thermal insulation for roof, firewall, floor, quarter panels, doors and even as a hoodliner.

    • IsolateVibrations
    • Reduce Noise
    • Block Heat
    • Peel and Stick Application
    • Oil and Water Resistant
    • Ultra Light and Flexible
    Application: A high efficiency, general purpose thermo- acoustic foam available in 1/8”, 1/4” and 1/2” thickness. Dynaliner provides high acoustic absorption and excellent thermal insulation for roof, firewall, floor, quarter panels, doors and more. See chart for application recommendations.

    Dynamat Information Sheet

    Dynamat Tech Spec Sheet 

    Dynamat Application Recommendation Chart

  • LizardSkin 50115 Sound Control, 2 Gallon
    LizardSkin 50115 Sound Control, 2 Gallon
    (Part #91044052)
    x
                

    LizardSkin Sound Control is a spray-applied automotive sound damping coating that is great for reducing exterior noises and enhancing sound systems. It is an advanced, water-based composition of a high-grade acrylic binder with sound-damping particles.

    Sound Control is used by custom car, street rod, truck builders and anyone else who wants to reduce unwanted noise and/or enhance the sound of their high end audio systems. It is best applied by the SuperPro Application Kit to a clean and dry, rust-free surface. For maximum acoustic performance in your ride, encapsulate the entire interior and all appropriate exterior surfaces.

    Since Sound Control not only dampens noise, but also protects surfaces, it will help keep the integrity of your ride intact for years. The coating can withstand temperatures to 300° F. One 2 gallon container of LizardSkin Sound Control will cover 40-45 sq. ft. at 0.040” thickness dry.

    Spec Sheet (PDF)