Bill Smith
Founder, 1929-2014
Speedy Bill
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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

Products
Featured Products
  • On Sale
    Product Rating: 4.00 Stars
    $10.67 $8.99
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    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
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  • Product Rating: 4.30 Stars
    $219.99
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    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)

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  • Product Rating: 4.80 Stars
    $159.99
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                LizardSkin is a revolutionary product that can lower the interior temperature of a vehicle from 25 to 30 degrees. With only a .040" thick application, LizardSkin can also lower the interior noise level by 10 - 12 decibels by forming a 100% sealed seamless membrane over 100% of the car's interior. LizardSkin can also be used on the exterior of a vehicle and when used in wheel wells it reduces the chance of starring from thrown rocks. Since it is impervious to moisture after drying,  it helps to seal the surface to which it is applied. 

    Sold in two-gallon buckets. Each covers 45-50 sq. ft. at 0.040" thickness dry. Add their Sound Control, also a spray-on, water-based product, and dramatically reduce interior noise even more.

    • Class A fire-rated
    • Environmentally friendly solution
    • Provides non-combustible thermal insulation
    • Eliminates cut and paste waste
    • Able to withstand temperatures up to 500°F
    • Adheres to most any material
    • Continuous protective moisture barrier
    • One-part coating system
    • Lightweight (around 0.1 lbs/ft2)
    • No respirator needed; but dust mask/protective eyewear is recommended
    • Easy spray-on application
    • Can be easily applied to irregular surfaces and geometries
    • Offers a protective, seamless membrane
    • Fast clean up with soap and water

    Spec Sheet (PDF)

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  • Product Rating: 4.50 Stars
    $399.99
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    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 

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    $19.99
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                2" (50mm) wide solid rubber roller. Professional tool for applying Dynamat and  ensuring proper adhesion with professional-looking results.  
            
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  • Product Rating: 4.00 Stars
    $149.99
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    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)

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  • On Sale
    Product Rating: 5.00 Stars
    $92.99 $79.99
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    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

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  • On Sale
    No Reviews
    $69.99 $59.99
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    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

    Go to Product Page
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