40 Series - 2.50 Offset In / 2.50 Offset Out - Aggressive Sound
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 16 gauge aluminized steel
  • Aggressive Sound Exterior Exhaust Tone
  • Noticeable interior resonance
  • Excellent Street/Strip and Off Road application

Information:

Universal Muffler - Some adaptation may be required.

Application Summary:

Year Make/Model
1978-1987 Buick Regal
1973-1974 Chevrolet Blazer
1975-1980 Chevrolet C10
1988-1993 Chevrolet C1500
1975-1980 Chevrolet C20
1988-1993 Chevrolet C2500
1975-1980 Chevrolet C30
1967-1981 Chevrolet Camaro
1964-1972 Chevrolet Chevelle
1978-1987 Chevrolet El Camino
1975-1980 Chevrolet K10
1988-1993 Chevrolet K1500
1975-1980 Chevrolet K20
1988-1993 Chevrolet K2500
1977-1980 Chevrolet K30
1975-1981 Chevrolet K5 Blazer
1978-1983 Chevrolet Malibu
1978-1988 Chevrolet Monte Carlo
2014 Dodge Challenger
1997-2010 Dodge Dakota
1997-2002 Ford Expedition
1997-2008 Ford F-150
2005-2010 Ford Mustang
1988-1993 GMC C1500
1988-1993 GMC C2500
1978-1987 GMC Caballero
1973-1981 GMC Jimmy
1988-1993 GMC K1500
1988-1993 GMC K2500
1998-2002 Lincoln Navigator
1982-1983 Oldsmobile Custom Cruiser
1980 Oldsmobile Cutlass
1979 Oldsmobile Cutlass Salon
1985-1987 Oldsmobile Cutlass Salon
1978-1987 Oldsmobile Cutlass Supreme
1982-1986 Pontiac Bonneville
1967-1981 Pontiac Firebird
1978-1987 Pontiac Grand Prix
Attributes
ASIN B000182DMY
Automotive Item Grade High Performance
Body Diameter (in) 2.5
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
Color Black
Country of Origin (Primary) CN
Emission Code 5
Fitment Universal
GTIN 00700042010356
Harmonized Tariff Code (Schedule B) 8708925000
Hazardous Material Code N
Inlet Connection Type Pipe, Pipe Connection
Inlet Diameter 2.500 in.
Inlet Diameter (in) 2.5
Inlet Inside Diameter 2.500 in.
Inlet Inside Diameter (in.) 2.5
Inlet Outside Diameter 2.500 in.
Inlet Position Offset
Inlet Size (in.) 2.5
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, Original 40 Series
Muffler Type Reflection
NAFTA Preference Criterion Code B
Outlet Connection Type Pipe, Pipe Connection
Outlet Diameter 2.500 in.
Outlet Diameter (in) 2.5
Outlet Outside Diameter 2.500 in.
Outlet Outside Diameter (in.) 2.5
Outlet Position Offset
Outlet Size (in.) 2.5
Outlet Type Single Offset Outlet
Overall Length 19.000 in.
Overall Length (In) 19
Overall Length (in.) 19.000 in.
Position N/A
Product Type Street Mufflers
SDR Required Flag N
SDS Sheet Number N
Shape Oval
Sound Level Aggressive, Aggressive Sound
Type of Muffler Chambered
Vehicle Type Classic Muscle Car, Late Model Muscle Car
Warranty Time 36

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Flowmaster 42543 2.5IN(O)/OUT(O) 40 SERIES

Product Information

Vehicle Fitment