OPGI.com works best with JavaScript enabled.
1‑800‑243‑8355

As seen on

  • Junkyard Empire Logo
  • Speed is the New Black Logo
Photo of Sound Deadener, R-Blox Extreme, Two 12" X 12" Sheet Speaker Set
Illustrative Only

R-Blox

Sound Deadener, R-Blox Extreme, Two 12" X 12" Sheet Speaker Set

Vehicle Specific View fitment for 53 models
Part# : CH27133
Mfg#: RX-SK
Sold As: Each
Ship Size: Standard
Price Match: Eligible
$14.99
List Price: $16.95
You Save 12%
Calendar IconArriving Soon
Add To Wishlist 

R-Blox provides a family of highly effective products to silence, smooth out and enhance your ride

"Extreme Mat" is a 60 mil. (.06") -thick mat consisting of a specially formulated visco-elastic compound bonded to an aluminum foil-type facing layer, which provides superior sound deadening as well as heat protection. Available in for speakers. Reduce road, engine and exhaust noise in any vehicle, while increasing the driving pleasure of your classic.

Notes

  • This item is not eligible for any further discounts or promotional pricing.

Find Item In These Catalogs

  • 2025 Cadillac 1936-1993 7
  • 2025 Chevelle, El Camino 64-77 14
  • 2025 Cutlass, F-85 & 442 61-77 11
  • 2025 GM G-Body 1978-1988 7
  • 2025 Grand Prix 1962-77 10
  • 2025 GTO, LeMans & Tempest 12
  • 2025 Monte Carlo 70-77 9
  • 2025 Riviera 1963-76 9
  • 2025 Skylark, GS & GSX 61-72 10
WARNING: This product can expose you to chemicals including lead, sulfur, nickel, chromium, vanadium, titanium, polyvinyl chloride, and 4,4’-methylenebis (2-chloroaniline), 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.

Vehicle Fitment

Year Make Model Application Details
1982 Buick Grand National speaker kit (2 sheets, 12" x 12")
1984–1987 Buick Grand National speaker kit (2 sheets, 12" x 12")
1976–1987 Buick Regal 1978–1987: speaker kit (2 sheets, 12" x 12")
1963–1976 Buick Riviera speaker kit (two sheets, 12" x 12")
1961–1972 Buick Skylark speaker kit (2 sheets, 12" x 12")
1983–1987 Buick T-Type speaker kit (2 sheets, 12" x 12")
1938–1993 Cadillac 60 Special - Speakers (Two Sheets: 12" x 12")
2013–2019 Cadillac ATS - Speakers (Two Sheets: 12" x 12")
1965–1976 Cadillac Calais - Speakers (Two Sheets: 12" x 12")
2003–2019 Cadillac CTS - Speakers (Two Sheets: 12" x 12")
1959–2005 Cadillac DeVille  
1953–2002 Cadillac Eldorado 1953–1993: - Speakers (Two Sheets: 12" x 12")
1999–2000 Cadillac Escalade - Speakers (Two Sheets: 12" x 12")
2002–2023 Cadillac Escalade - Speakers (Two Sheets: 12" x 12")
2002–2013 Cadillac Escalade EXT - Speakers (Two Sheets: 12" x 12")
1954–1996 Cadillac Fleetwood 1954–1993: - Speakers (Two Sheets: 12" x 12")
1936–1951 Cadillac Series 60 1938–1951: - Speakers (Two Sheets: 12" x 12")
1936–1951 Cadillac Series 61 1939–1951: - Speakers (Two Sheets: 12" x 12")
1937–1976 Cadillac Series 62 - Speakers (Two Sheets: 12" x 12")
1936–1951 Cadillac Series 63 1939–1951: - Speakers (Two Sheets: 12" x 12")
1937–1976 Cadillac Series 65 - Speakers (Two Sheets: 12" x 12")
1936–1987 Cadillac Series 67 1938–1987: - Speakers (Two Sheets: 12" x 12")
1936–1987 Cadillac Series 70 1938–1987: - Speakers (Two Sheets: 12" x 12")
1936–1987 Cadillac Series 72 1938–1987: - Speakers (Two Sheets: 12" x 12")
1936–1987 Cadillac Series 75 1938–1987: - Speakers (Two Sheets: 12" x 12")
1976–2004 Cadillac Seville  
2005–2011 Cadillac STS - Speakers (Two Sheets: 12" x 12")
2004–2009 Cadillac XLR - Speakers (Two Sheets: 12" x 12")
1947–1955 Chevrolet Advance Design  
1960–1987 Chevrolet C10  
1960–1987 Chevrolet C20  
1960–1987 Chevrolet C30  
1964–1977 Chevrolet Chevelle speaker kit (2 sheets, 12" x 12")
1960–1969 Chevrolet Corvair speaker kit (2 sheets, 12" x 12")
1961–1965 Chevrolet Corvair FC speaker kit (2 sheets, 12" x 12")
1959–1960 Chevrolet El Camino  
1964–1987 Chevrolet El Camino 1964–1977: speaker kit (2 sheets, 12" x 12")
1978–1987: speaker kit (2 sheets, 12" x 12")
1960–1987 Chevrolet K10  
1960–1987 Chevrolet K20  
1977–1987 Chevrolet K30  
1978–1983 Chevrolet Malibu speaker kit (2 sheets, 12" x 12")
1997–2022 Chevrolet Malibu  
1970–1988 Chevrolet Monte Carlo 1970–1977: speaker kit (2 sheets, 12" x 12")
1978–1988: speaker kit (2 sheets, 12" x 12")
1995–2007 Chevrolet Monte Carlo  
1955–1959 Chevrolet Task Force  
1947–1955 GMC Advance Design  
1960–1987 GMC C15  
1960–1987 GMC C25  
1960–1987 GMC C35  
1960–1987 GMC K15  
1960–1987 GMC K25  
1977–1987 GMC K35  
1955–1959 GMC Task Force  
1961–1988 Oldsmobile Cutlass 1961–1977: speaker kit (2 sheets, 12" x 12")
1978–1987: speaker kit (2 sheets, 12" x 12")
1958–1986 Pontiac Bonneville 1958–1977: speaker (2 sheets, 12" x 12")
1982–1986: speaker kit (2 sheets, 12" x 12")
1959–1977 Pontiac Catalina speaker (2 sheets, 12" x 12")
1962–1987 Pontiac Grand Prix 1962–1977: speaker (2 sheets, 12" x 12")
1978–1987: speaker kit (2 sheets, 12" x 12")
1964–1973 Pontiac GTO Speaker Kit (2 Sheets, 12" X 12")
1961–1981 Pontiac LeMans 1961–1973: Speaker Kit (2 Sheets, 12" X 12")
1961–1970 Pontiac Tempest Speaker Kit (2 Sheets, 12" X 12")
  • Headshot of OPGI Employee
    Have a Question? Chat with an Expert or Call 1‑800‑243‑8355
    Mon‑Fri 8:00‑4:30 PT Experts are currently offline
  • Low Prices. Price Match Guarantee
  • GM Automotive Experts. We know car parts
  • Guaranteed Fitment. 100% factory accurate
  • Superior Selection. Largest selection of in-stock parts

Customers Who Viewed This Item Also Viewed

Reviews (2)

UH OH! Product reviews didn't load.
Please reload the page, or unblock our review partner Yotpo.com.
Sound Deadener, R-Blox Extreme, Two 12
R-Blox Sound Deadener, R-Blox Extreme, Two 12" X 12" Sheet Speaker Set