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

As seen on

  • Car Fix TV Logo
  • Junkyard Empire Logo
Photo of Muffler, Flowmaster, Super 44, 2-1/2", Stainless Steel
Illustrative Only

Flowmaster

Muffler, Flowmaster, Super 44, 2-1/2", Stainless Steel

Part# : FM84254
Mfg#: 842548
Sold As: Each
Ship Size: Standard
$139.99
List Price: $154.95
You Save $14.96
Checkmark IconLow Stock
Only a few left for immediate delivery
Fits 1940–1964 Series 62 View fitment for 28 models
Add To Wishlist 

Flowmaster's Super 44 muffler uses the same Delta Flow® technology found in our larger Super 40 mufflers. The Super 44 delivers a rich powerful tone and are the most aggressive, highest performing street muffler we've ever built in a four inch case. Constructed of 16 gauge 409S stainless steel and fully MIG welded for maximum durability. Body measures 13" x 9.75" and 4" tall. Overall length is 19".

Features: Deep Aggressive Sound Exhaust Note Noticeable interior resonance Recent two chamber improvement Race proven Delta Flow technology

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 Cadillac 1936-1993 130
  • 2025 Chevelle, El Camino 64-77 369
  • 2025 Cutlass, F-85 & 442 61-77 230
  • 2025 GM G-Body 1978-1988 203
  • 2025 Grand Prix 1962-77 221
  • 2025 GTO, LeMans & Tempest 257
  • 2025 Monte Carlo 70-77 220
  • 2025 Riviera 1963-76 119
  • 2025 Skylark, GS & GSX 61-72 208
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 Super 44 - Offset/Offset - 2-1/2" in/out
1984–1987 Buick Grand National Super 44 - Offset/Offset - 2-1/2" in/out
1978–1987 Buick Regal Super 44 - Offset/Offset - 2-1/2" in/out
1963–1976 Buick Riviera Super 44 (Offset/Offset) - 2-1/2" in/out
1961–1972 Buick Skylark Super 44 (Offset/Offset) - 2-1/2" in/out
1983–1987 Buick T-Type Super 44 - Offset/Offset - 2-1/2" in/out
1938–1953 Cadillac 60 Special Super 44 - Offset/Offset - 2-1/2" in/out
1959–1993 Cadillac DeVille Super 44 - Offset/Offset - 2-1/2" in/out
1953–1993 Cadillac Eldorado Super 44 - Offset/Offset - 2-1/2" in/out
1965–1993 Cadillac Fleetwood Super 44 - Offset/Offset - 2-1/2" in/out
1939–1951 Cadillac Series 60 Super 44 - Offset/Offset - 2-1/2" in/out
1939–1951 Cadillac Series 61 Super 44 - Offset/Offset - 2-1/2" in/out
1940–1964 Cadillac Series 62 Super 44 - Offset/Offset - 2-1/2" in/out
1939–1951 Cadillac Series 63 Super 44 - Offset/Offset - 2-1/2" in/out
1936–1937 Cadillac Series 70 Super 44 - Offset/Offset - 2-1/2" in/out
1976–2004 Cadillac Seville  
1964–1977 Chevrolet Chevelle Super 44 - offset/offset - 2-1/2" in/out
1960–1969 Chevrolet Corvair Super 44 - offset/offset - 2-1/2" in/out
1961–1965 Chevrolet Corvair 95 FC Super 44 - offset/offset - 2-1/2" in/out
1964–1987 Chevrolet El Camino 1964–1977: Super 44 - offset/offset - 2-1/2" in/out
1978–1987: Super 44 - Offset/Offset - 2-1/2" in/out
1978–1983 Chevrolet Malibu Super 44 - Offset/Offset - 2-1/2" in/out
1997–2022 Chevrolet Malibu  
1970–1988 Chevrolet Monte Carlo 1970–1977: Super 44 (Offset/Offset) - 2-1/2" in/out
1978–1988: Super 44 - Offset/Offset - 2-1/2" in/out
1961–1987 Oldsmobile Cutlass 1961–1977: Super 44 (Offset/Offset) - 2-1/2" in/out
1978–1987: Super 44 - Offset/Offset - 2-1/2" in/out
1958–1977 Pontiac Bonneville Super 44 (Offset/Offset) - 2-1/2" in/out
1982–1986 Pontiac Bonneville Super 44 - Offset/Offset - 2-1/2" in/out
1959–1977 Pontiac Catalina Super 44 (Offset/Offset) - 2-1/2" in/out
1962–1987 Pontiac Grand Prix 1962–1977: Super 44 (Offset/Offset) - 2-1/2" in/out
1978–1987: Super 44 - Offset/Offset - 2-1/2" in/out
1964–1973 Pontiac GTO Super 44 (Offset/Offset) - 2-1/2" in/out
1961–1974 Pontiac LeMans 1961–1973: Super 44 (Offset/Offset) - 2-1/2" in/out
1961–1970 Pontiac Tempest Super 44 (Offset/Offset) - 2-1/2" in/out
  • 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, Flowmaster, Super 44, 2-1/2
Flowmaster Muffler, Flowmaster, Super 44, 2-1/2", Stainless Steel