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

As seen on

  • Bitchin' Rides Logo
  • Motorhead Garage Logo
Photo of Muffler, 4" Round Glasspack, Magnaflow, 3" Inlet/Outlet, 18" Body, Aluminized
Illustrative Only

Magnaflow

Muffler, 4" Round Glasspack, Magnaflow, 3" Inlet/Outlet, 18" Body, Aluminized

Part# : CH36406
Mfg#: 18129
Sold As: Each
Ship Size: Standard
$75.99
List Price: $84.95
You Save 11%
Checkmark IconLow Stock
Only a few left for immediate delivery
Fits 1961–1981 LeMans View fitment for 59 models
Add To Wishlist 

100% Aluminized Steel Classic Glasspack

MagnaFlow Glasspack Mufflers feature a reversible straight-through design.

The MagnaFlow 4" Round Glasspack features the same classic deep sound and dyno-proven performance of our other glasspack mufflers. The 3/3in. round body and reversible straight-through universal design can be integrated into your vehicle’s exhaust system however you see fit, although professional installation is recommended. Check to ensure compliance with local noise regulations. This free-flowing muffler is engineered to add a dose of hot rod fury to your ride. Featuring durable, corrosion resistant aluminized steel construction and is produced using cutting-edge CNC precision robotic manufacturing techniques, all backed by MagnaFlow’s 90-day limited construction warranty.

Notes

  • This item is not eligible for any further discounts or promotional pricing.
4
This product does not require an EO in California. By nature of its design, it is legal for sale and use in all 50 states. Replacement parts included. Learn More

Find Item In These Catalogs

  • 2025 Chevelle, El Camino 64-77 370
  • 2025 GM G-Body 1978-1988 205
  • 2025 Grand Prix 1962-77 222
  • 2025 GTO, LeMans & Tempest 258
  • 2025 Monte Carlo 70-77 221
  • 2025 Skylark, GS & GSX 61-72 209
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  
1984–1987 Buick Grand National  
1976–1987 Buick Regal  
1963–1976 Buick Riviera  
1961–1972 Buick Skylark  
1983–1987 Buick T-Type  
1938–1993 Cadillac 60 Special  
2013–2019 Cadillac ATS  
1965–1976 Cadillac Calais  
2003–2019 Cadillac CTS  
1959–2005 Cadillac DeVille  
1953–2002 Cadillac Eldorado  
1999–2000 Cadillac Escalade  
2002–2023 Cadillac Escalade  
2002–2013 Cadillac Escalade EXT  
1965–1996 Cadillac Fleetwood  
1936–1951 Cadillac Series 60  
1946–1964 Cadillac Series 60 Fleetwood  
1936–1951 Cadillac Series 61  
1937–1976 Cadillac Series 62  
1936–1951 Cadillac Series 63  
1937–1938 Cadillac Series 65  
1936–1942 Cadillac Series 67  
1936–1937 Cadillac Series 70  
1940 Cadillac Series 72  
1936–1942 Cadillac Series 75  
1946–1964 Cadillac Series 75  
1946–1964 Cadillac Series 75 Fleetwood  
1976–2004 Cadillac Seville  
2005–2011 Cadillac STS  
2004–2009 Cadillac XLR  
1947–1955 Chevrolet Advance Design  
1960–1987 Chevrolet C10  
1960–1987 Chevrolet C20  
1960–1987 Chevrolet C30  
1964–1977 Chevrolet Chevelle  
1960–1969 Chevrolet Corvair  
1961–1965 Chevrolet Corvair 95 FC  
1959–1960 Chevrolet El Camino  
 
1964–1987 Chevrolet El Camino  
 
1960–1987 Chevrolet K10  
1960–1987 Chevrolet K20  
1977–1987 Chevrolet K30  
1978–1983 Chevrolet Malibu  
1997–2022 Chevrolet Malibu  
1970–1988 Chevrolet Monte Carlo  
1995–2007 Chevrolet Monte Carlo  
1960–1991 Chevrolet Suburban  
1955–1959 Chevrolet Task Force  
1955–1959 GMC Blue Chip  
1960–1987 GMC C15/C1500  
1960–1987 GMC C25/C2500  
1960–1987 GMC C35/C3500  
1970–1991 GMC Jimmy  
1960–1987 GMC K15/K1500  
1960–1987 GMC K25/K2500  
1977–1987 GMC K35/K3500  
1947–1955 GMC New Design  
1961–1988 Oldsmobile Cutlass  
1958–1986 Pontiac Bonneville  
1959–1977 Pontiac Catalina  
1962–1987 Pontiac Grand Prix  
1964–1973 Pontiac GTO  
1961–1981 Pontiac LeMans  
1961–1970 Pontiac Tempest  
  • 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 (0)

UH OH! Product reviews didn't load.
Please reload the page, or unblock our review partner Yotpo.com.
Muffler, 4
Magnaflow Muffler, 4" Round Glasspack, Magnaflow, 3" Inlet/Outlet, 18" Body, Aluminized