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Flowmaster 42443

40 Series Original Muffler Offset In/Offset Out: 2.25"

Flowmaster 42443

389-42443

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Flowmaster 42443 40 Series Original Muffler Offset In/Offset Out: 2.25" $83.76
40 Series Original Muffler
  • Offset In/Offset Out: 2.25"
  • Aluminized Steel

  • Flowmaster 42443 Details

    Offset In/Offset Out

  • Durable Fully Welded 16ga Aluminized Steel
  • 3 Year Limited Warranty
  • Aggressive And Powerful Exterior Exhaust Tone
  • Notable Interior Resonance
  • Excellent Street/Strip And Off Road Application
  • No Internal Packing To Blowout
  • The Original Two Chamber Design
  • www.Flowmastermufflers.com

  • Specifications:

    Body Length (in.)
    13
    Overall Length (in.)
    19
    Inlet Size (in.)
    2.25
    Outlet Size (in.)
    2.25
    Body Height (in.)
    4
    Body Width (in.)
    9.75
    Width (in.)
    9.75
    Material
    Aluminized Steel
    Shape
    Oval
    Inlet Type
    Single Offset Inlet
    Outlet Type
    Single Offset Outlet
    Position
    N/A
    Inlet Position
    Offset
    Outlet Position
    Offset
    Body Length (in.)
    13.0
    Inlet Connection Type
    Pipe Connection
    Sound Level
    Aggressive Sound
    Muffler Type
    Reflection
    Case Length (in.)
    13
    Case Shape
    Oval
    Internal Construction
    Chambered
    Muffler Finish
    Aluminized
    Muffler Material
    Steel
    Outlet Style
    Standard, without tip
    Quantity
    Sold individually
    Outlet Quantity
    One
    Thickness (in.)
    4
    Inlet Location
    Offset
    Outlet Location
    Offset
    Inlet Diameter (in.)
    2.25
    Outlet Diameter (in.)
    2.25
    Inlet Quantity
    One
    Manufacturer's Part Number:
    42443

    The Muffler That Started It All!

    Flowmaster's 40 Series Original Mufflers are the muffler that started it all. An aggressive sounding street/strip muffler that delivers that powerful, classic “Flowmaster Sound”. Give you exhaust system that great muscle car tone, from both inside and outside of the vehicle.

    Features:
  • The original high-performance muffler.
  • Aggressive sound.
  • Stainless steel.
  • Fully MIG welded.


  • Does Flowmaster 42443 fit your vehicle?

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    1968 CHEVROLET CAPRICE

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970 CHEVROLET CAPRICE

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1973 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: K
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2006-2010 DODGE CHARGER

    • CC: 3518
    • Liter: 3.5
    • SubModel: SXT
    • CUI: 215
    • EngineType: V6 ( 3.5 L / 215 )

    1971-1973 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: ALL

    1978 GMC JIMMY

    • Liter: 5.7
    • SubModel: STREET COUPE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 GMC K1500 SUBURBAN

    • Liter: 5.7
    • SubModel: SIERRA GRANDE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1973 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: CLASSIC
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 BUICK SKYLARK

    • Liter: 5.0
    • SubModel: SR
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975 CHEVROLET CAMARO

    • Liter: 4.1
    • SubModel: RS
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1990 FORD BRONCO

    • EngineType: ALL
    • SubModel: XLT

    1973 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: LS
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1977-1979 CHEVROLET K10 SUBURBAN

    • Liter: 5.7
    • SubModel: SCOTTSDALE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1970 CHEVROLET CAMARO

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1974 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1987-1989 FORD BRONCO

    • Liter: 5.8
    • SubModel: CUSTOM
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1975 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: RS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET C10 SUBURBAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1980-1981 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1991-1992 FORD BRONCO

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1968-1969 CHEVROLET CAPRICE

    • CC: 6998
    • Liter: 7.0
    • SubModel: BASE
    • CUI: 427
    • EngineType: V8 ( 7.0 L / 427 )

    1973 CHEVROLET CAPRICE

    • CC: 5031
    • Liter: 5.0
    • SubModel: CLASSIC
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1970-1971 PONTIAC FIREBIRD

    • CC: 5733
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1977 CHEVROLET K10 SUBURBAN

    • CC: 5031
    • Liter: 5.0
    • SubModel: SILVERADO
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1987-1989 FORD BRONCO

    • Liter: 5.0
    • SubModel: CUSTOM
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1990 FORD BRONCO

    • EngineType: ALL
    • SubModel: CUSTOM

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1969 CHEVROLET CAMARO

    • CC: 6489
    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1980 OLDSMOBILE CUTLASS SALON

    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1994-1996 FORD BRONCO

    • EngineType: ALL
    • SubModel: XLT

    1980-1981 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1983-1984 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1973 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: ESTATE
    • Engine Vin: H
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET C10 SUBURBAN

    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: T
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1994 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: CLASSIC LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1976-1978 GMC JIMMY

    • Liter: 6.6
    • SubModel: BASE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1975-1978 GMC K15 SUBURBAN

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1979-1980 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1976-1978 CHEVROLET K5 BLAZER

    • Liter: 5.7
    • SubModel: CHEYENNE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978 CHEVROLET K5 BLAZER

    • Liter: 6.6
    • SubModel: SILVERADO
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: LT
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1975 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: J
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005-2009 CHRYSLER 300

    • EngineType: ALL
    • SubModel: TOURING

    1985 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    1975 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: BASE

    1971 CHEVROLET CAPRICE

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.0
    • SubModel: BROUGHAM
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: Y
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1993-1995 PONTIAC FIREBIRD

    • Liter: 3.4
    • SubModel: BASE
    • CUI: 207
    • EngineType: V6 ( 3.4 L / 207 )

    1974 PONTIAC FIREBIRD

    • CC: 5737
    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2006-2007 CHRYSLER 300

    • CC: 2700
    • Liter: 2.7
    • SubModel: BASE
    • CUI: 167
    • EngineType: V6 ( 2.7 L / 167 )

    1983 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.0
    • SubModel: HURST
    • CUI: 307
    • EngineType: V8 ( 5.0 L / 307 )

    1983 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1981 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: SPORT

    1975 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: ESPRIT

    1977 BUICK SKYLARK

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1973-1974 CHEVROLET K10 SUBURBAN

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1979 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: HURST

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: LS
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1975-1978 GMC K15 SUBURBAN

    • Liter: 4.1
    • SubModel: SIERRA GRANDE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1983-1984 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1974 PONTIAC FIREBIRD

    • CC: 5737
    • Liter: 5.7
    • SubModel: ESPRIT
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1979-1980 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1972-1973 PONTIAC FIREBIRD

    • CC: 5737
    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: M
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1978-1979 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1974 GMC C15/C1500 SUBURBAN

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1976-1978 GMC JIMMY

    • Liter: 6.6
    • SubModel: SIERRA CLASSIC
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1973 GMC C15/C1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1988 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: CLASSIC

    2007-2009 DODGE CHARGER

    • CC: 2700
    • Liter: 2.7
    • SubModel: SE
    • CUI: 167
    • EngineType: V6 ( 2.7 L / 167 )

    1993 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SVT COBRA R

    1972 CHEVROLET CAPRICE

    • CC: 6588
    • Liter: 6.6
    • SubModel: BASE
    • CUI: 402
    • EngineType: V8 ( 6.6 L / 402 )

    2011 CHRYSLER 300

    • EngineType: ALL
    • SubModel: BASE

    1974 GMC C15/C1500 SUBURBAN

    • Liter: 4.8
    • SubModel: BASE
    • CUI: 292
    • EngineType: L6 ( 4.8 L / 292 )

    1968-1969 CHEVROLET CAPRICE

    • CC: 5358
    • Liter: 5.3
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.3 L / 327 )

    1967 CHEVROLET CAMARO

    • CC: 4638
    • Liter: 4.6
    • SubModel: BASE
    • CUI: 283
    • EngineType: V8 ( 4.6 L / 283 )

    2012-2013 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LS

    1977-1978 CHEVROLET K5 BLAZER

    • Liter: 5.7
    • SubModel: CUSTOM DELUXE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1974 CHEVROLET C10 SUBURBAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1970-1971 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: ESPRIT

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1980 OLDSMOBILE CUTLASS

    • Liter: 5.0
    • SubModel: LS
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    2013 DODGE CHALLENGER

    • CC: 3604
    • Liter: 3.6
    • SubModel: SXT
    • CUI: 220
    • EngineType: V6 ( 3.6 L / 220 )

    1980 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM DELUXE

    1975-1979 CHEVROLET K10 SUBURBAN

    • CC: 4097
    • Liter: 4.1
    • SubModel: SCOTTSDALE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1972-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • Aspiration: N
    • SubModel: FORMULA
    • Engine Vin: X
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    1983 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.7
    • SubModel: HURST
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1968-1970 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2008-2009 DODGE CHARGER

    • CC: 3497
    • Liter: 3.5
    • SubModel: SE
    • CUI: 215
    • EngineType: V6 ( 3.5 L / 215 )

    1991-1992 FORD BRONCO

    • Liter: 5.0
    • SubModel: EDDIE BAUER
    • CUI: 302
    • EngineType: V8 ( 5.0 L / 302 )

    1979-1980 GMC K1500 SUBURBAN

    • Liter: 5.7
    • SubModel: SIERRA CLASSIC
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1967 CHEVROLET CAMARO

    • CC: 4949
    • Liter: 4.9
    • SubModel: BASE
    • CUI: 302
    • EngineType: V8 ( 4.9 L / 302 )

    1985 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1966-1967 CHEVROLET CAPRICE

    • Liter: 6.5
    • SubModel: BASE
    • CUI: 396
    • EngineType: V8 ( 6.5 L / 396 )

    1972 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    1985-1987 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8 ( 5.0 L / 305 )

    1991-1992 FORD BRONCO

    • Liter: 5.8
    • SubModel: EDDIE BAUER
    • CUI: 351
    • EngineType: V8 ( 5.8 L / 351 )

    1979-1984 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )
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