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  • Glue it & Screw It Sub Boxes
  • GP's CNC SHOP
  • Bundle Deals
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  • WIRING & CABLE
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  • Northstar Battery
  • Battery Maintenance
  • Sound Deadener
  • Subwoofers
  • Amplifiers
  • Mids & Highs
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  • GP Car Audio
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  • SPL LAB
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  • View all Brands

    • GP Car Audio

    • *GP STFU V2 250mil 100 sqft (25 sheets)
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      *GP STFU V2 250mil 100 sqft (25 sheets)

      100 SQ FEET (25) 18" x 32" Sheets -Pure Butyl -Foil Barrier -CCF Layer Get the job done in a SINGLE layer with the GP STFU 250 Mil Sound Deadener. Once applied GP STFU 250 Mil Sound Deadener lowers panel resonance, drastically reduces...

      MSRP: $799.99
      $589.99
      Add to Cart
    • *GP STFU V2 250mil 20 SQFT (5 sheets)
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      *GP STFU V2 250mil 20 SQFT (5 sheets)

        20 SQ FEET (5) 18" x 32" Sheets -Pure Butyl -Foil Barrier -CCF Layer   Get the job done in a SINGLE layer with the GP STFU 250 Mil Sound Deadener. Once applied GP STFU 250 Mil Sound Deadener lowers panel resonance,...

      MSRP: $199.99
      $139.99
      Add to Cart
    • *GP STFU V2 250mil 4 SQFT (1 sheet)
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      *GP STFU V2 250mil 4 SQFT (1 sheet)

      4 SQ FEET (1) 18" x 32" Sheet  -Pure Butyl -Foil Barrier -CCF Layer   Get the job done in a SINGLE layer with the GP STFU 250 Mil Sound Deadener. Once applied GP STFU 250 Mil Sound Deadener lowers panel resonance, drastically...

      MSRP: $59.99
      $34.99
      Add to Cart
    • *GP STFU V2 250mil 40 SQFT (10 Sheets)
      Quick view

      *GP STFU V2 250mil 40 SQFT (10 Sheets)

      40 SQ FEET (10) 18" x 32" Sheets -Pure Butyl -Foil Barrier -CCF Layer    Get the job done in a SINGLE layer with the GP STFU 250 Mil Sound Deadener. Once applied GP STFU 250 Mil Sound Deadener lowers panel resonance, drastically...

      MSRP: $389.99
      $259.99
      Add to Cart
    • *GP STFU V2 250mil 60 SQFT (15 Sheets)
      Quick view

      *GP STFU V2 250mil 60 SQFT (15 Sheets)

      60 SQ FEET (15) 18" x 32" Sheets   -Pure Butyl -Foil Barrier -CCF Layer   Get the job done in a SINGLE layer with the GP STFU 250 Mil Sound Deadener. Once applied GP STFU 250 Mil Sound Deadener lowers panel resonance,...

      MSRP: $549.99
      $379.99
      Add to Cart
    • *GP STFU v2 250mil 80 SQFT (20 sheets)
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      *GP STFU v2 250mil 80 SQFT (20 sheets)

      80 SQ FEET (20) 18" x 32" Sheets -Pure Butyl -Foil Barrier -CCF Layer Get the job done in a SINGLE layer with the GP STFU 250 Mil Sound Deadener. Once applied GP STFU 250 Mil Sound Deadener lowers panel resonance, drastically reduces flex,...

      MSRP: $699.99
      $484.99
      Add to Cart
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