2.25in.IN(O)/OUT(C) 40 SERIES
The Original 40 series muffler delivers an aggressive exterior and interior tone. If you're looking for that original Flowmaster sound this is the muffler is for you. Constructed of 16 gauge aluminized steel and fully MIG welded for maximum durability.
  • Durable Fully Welded 16ga Aluminized Steel
  • Aggressive Exterior Exhaust Tone
  • Noticeable Interior Resonance
  • Excellent Street/Strip And Off Road Application
  • Excellent Street/Strip And Off Road Application
  • No Internal Packing To Blowout
  • The Original Two Chamber Design
  • Premium Flowmaster Quality

Application Summary:

Year Make/Model
1978-1980 Buick Regal
1986-1987 Buick Regal
1973-1977 Chevrolet Caprice
1986-1987 Chevrolet Caprice
1973 Chevrolet Chevelle
2005-2010 Chevrolet Cobalt
1972-1977 Chevrolet Impala
1985 Chevrolet Impala
2006-2007 Chevrolet Impala
1985-1988 Chevrolet Monte Carlo
2006-2007 Chevrolet Monte Carlo
1983-1997 Chevrolet S10
1983-1994 Chevrolet S10 Blazer
2001-2010 Chrysler PT Cruiser
1970-1974 Dodge Challenger
1966-1974 Dodge Charger
1965-1974 Dodge Coronet
1969-1974 Dodge Dart
1991-2010 Ford Explorer
2001-2003 Ford Explorer Sport
1975-1986 Ford F-150
1975-1986 Ford F-250
1975-1986 Ford F-350
1960-1970 Ford Fairlane
1972-1974 Ford Gran Torino
1968-1974 Ford Torino
1992-1997 GMC Jimmy
1983-1990 GMC S15
1983-1991 GMC S15 Jimmy
1991-1997 GMC Sonoma
1967-1974 Mercury Cougar
1990-2007 Mitsubishi Eclipse
1973-1977 Oldsmobile Cutlass
1970-1974 Plymouth Barracuda
1965-1967 Plymouth Belvedere II
1970-1974 Plymouth Duster
1967-1970 Plymouth GTX
1968-1971 Plymouth Road Runner
1973-1977 Pontiac LeMans
2001-2007 Subaru Impreza
Automotive Item Grade High Performance
Body Diameter (in) 2.25
Body Height 4.000 in.
Body Height (in) 4
Body Height (in.) 4
Body Length 13.000 in.
Body Length (in) 13
Body Length (in.) 13
Body Width 9.750 in.
Body Width (in) 9.75
Body Width (in.) 9.75
Brand Flowmaster
Bullet Point #1 Durable fully welded 16 gauge aluminized steel
Bullet Point #2 Aggressive Sound Exterior Exhaust Tone
Bullet Point #3 Noticeable interior resonance
Bullet Point #4 Excellent Street/Strip and Off Road application
California Proposition 65 No
California Proposition 65 Required No
Color Black
Country of Origin (Primary) US
Emission Code 5, Legal US
Fitment Universal
GTIN 00700042010295
Harmonized Tariff Code (Schedule B) 8708925000
Hazardous Material Code N
Inlet Connection Type Pipe
Inlet Diameter 2.250 in.
Inlet Diameter (in) 2.25
Inlet Inside Diameter 2.250 in.
Inlet Inside Diameter (in.) 2.25
Inlet Outside Diameter 2.250 in.
Inlet Position Offset
Inlet Size (in.) 2.25
Inlet Type Single Offset
Life Cycle Status Code Available to Order
Main Piping Diameter OEM
Main Piping Diameter (in.) OEM
Material Aluminized Steel
Mount Type Uses New Hangers (Not Included)
Muffler Count 1
Muffler Series 40 Series
Muffler Type Reflection
NAFTA Preference Criterion Code B
Outlet Connection Type Pipe
Outlet Diameter 2.500 in.
Outlet Diameter (in) 2.25
Outlet Outside Diameter 2.250 in.
Outlet Outside Diameter (in.) 2.25
Outlet Position Center
Outlet Size (in.) 2.25
Outlet Type Single Center Outlet
Overall Length 19.000 in.
Overall Length (in) 19
Overall Length (in.) 19.000 in.
Position N/A
Product Type Street Mufflers
Prop 65 Yes/No No
SDR Required Flag N
SDS Sheet Number N
Shape Oval
Sound Level Aggressive
Tip Quantity 0
Type of Muffler Chambered
WARNING CA Proposition 65 No
Warranty Time 36

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Flowmaster 42441 40 Series Muffler-2.25 Offset In/2.25 Center Out-Aggressive Sound

Product Information

Tags: Chambered, Exhaust, Performance muffler, muffler, flowmaster, race muffler, universal muffler, magnaflow, borla, gibson, stainless exhaust, stainless muffler, tuned muffler, sport muffler, tuner, tuned exhaust, exhaust upgrade, performance upgrade