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Flowmaster 42443

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



Flowmaster 42443

Part Number: 389-42443

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

    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
    Case Length (in.)
    13
    Case Shape
    Oval
    Inlet Quantity
    One
    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
    Manufacturer's Part Number:
    42443

    The muffler that started it all: Flowmaster's 40 Series. Made of aluminized or stainless steel, these are the most aggressive sounding street/strip mufflers in the Flowmaster lineup. They also create resonance in the vehicle so, if you want "surround sound" from your exhaust, look no further.


    Features
  • For street and strip applications
  • Loud, aggressive sound with interior resonance
  • Case: 13" L (4" Thick)
  • Overall: 19" L x 9.75" W
  • Aluminized steel or 409S stainless steel (stainless has limited lifetime warranty)
  • Stainless mufflers are painted dark grey metallic to improve resistance from the elements
  • MIG welded for maximum durability

  • Does Flowmaster 42443 fit your vehicle?

    Narrow Results

    1979-1982 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1988 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: CLASSIC BROUGHAM

    1975 PONTIAC FIREBIRD

    • Liter: 6.6
    • EngineType: V8
    • SubModel: FORMULA

    1970-1975 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    1978-1980 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1982 CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SCOTTSDALE

    1982 OLDSMOBILE CUTLASS CALAIS

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1973 CHEVROLET CAPRICE

    • CC: 5736
    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8

    2008-2009 CHRYSLER 300

    • EngineType: ALL
    • SubModel: LX

    2011 CHRYSLER 300

    • EngineType: ALL
    • SubModel: BASE

    1967-1969 CHEVROLET CAMARO

    • Liter: 6.5
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET CAMARO

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1985 OLDSMOBILE CUTLASS SUPREME

    • EngineType: V8
    • SubModel: LS

    1979-1980 GMC K1500 SUBURBAN

    • EngineType: L6
    • SubModel: HIGH SIERRA

    1977-1979 CHEVROLET K10 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SCOTTSDALE

    2011-2012 DODGE CHALLENGER

    • EngineType: ALL
    • SubModel: R/T

    1967-1969 CHEVROLET CAMARO

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1985-1986 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: 442

    1974 CHEVROLET C10 SUBURBAN

    • CC: 4801
    • Liter: 4.8
    • SubModel: BASE
    • EngineType: L6

    2008-2012 CHRYSLER 300

    • EngineType: ALL
    • SubModel: C

    2003 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SVT COBRA 10TH ANNIVERSARY

    1970-1974 PONTIAC FIREBIRD

    • EngineType: L6
    • SubModel: BASE

    2005-2012 CHRYSLER 300

    • EngineType: ALL
    • SubModel: LIMITED

    1969 CHEVROLET CAMARO

    • Liter: 7.0
    • EngineType: V8
    • SubModel: BASE

    1976-1978 GMC JIMMY

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1977-1979 CHEVROLET CAMARO

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1970-1975 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: ESPRIT

    1973 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: CLASSIC
    • CUI: 350
    • EngineType: V8

    1979 GMC K1500 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SIERRA GRANDE

    1987-1989 FORD BRONCO

    • EngineType: V8
    • SubModel: EDDIE BAUER

    1976 CHEVROLET C20 SUBURBAN

    • EngineType: ALL
    • SubModel: BASE

    1975-1978 GMC K15 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1970 CHEVROLET CAMARO

    • CC: 3769
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 230
    • EngineType: L6

    2012-2013 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LS

    1979 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: HURST

    2013 CHRYSLER 300

    • EngineType: ALL
    • SubModel: BASE

    2013 DODGE CHALLENGER

    • CC: 3604
    • Liter: 3.6
    • SubModel: SXT
    • CUI: 220
    • EngineType: V6

    1976 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: LT
    • EngineType: V8

    1980 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1973 CHEVROLET CAPRICE

    • CC: 5737
    • Liter: 5.7
    • SubModel: ESTATE
    • EngineType: V8

    1973 CHEVROLET C10 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1986 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1983 OLDSMOBILE CUTLASS CALAIS

    • EngineType: V8
    • SubModel: HURST

    2009-2011 DODGE CHALLENGER

    • EngineType: ALL
    • SubModel: SE

    1983 OLDSMOBILE CUTLASS CRUISER

    • EngineType: V8
    • SubModel: BASE

    1975-1978 GMC K15 SUBURBAN

    • EngineType: L6
    • SubModel: BASE

    1975-1976 BUICK SKYLARK

    • Liter: 5.7
    • SubModel: SR
    • CUI: 350
    • EngineType: V8

    2005-2008 DODGE MAGNUM

    • EngineType: ALL
    • SubModel: SXT

    2010-2011 CHEVROLET CAMARO

    • Liter: 3.6
    • SubModel: LS
    • CUI: 217
    • EngineType: V6

    1976 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: LT
    • CUI: 350
    • EngineType: V8

    1980 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8

    1973 GMC K15/K1500 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1976-1979 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: RALLY SPORT

    1982 CHEVROLET C10 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SILVERADO

    1970-1974 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FORMULA

    1968-1969 CHEVROLET CAPRICE

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1993-1995 PONTIAC FIREBIRD

    • Liter: 3.4
    • SubModel: BASE
    • CUI: 207
    • EngineType: V6

    1994-1996 CHEVROLET IMPALA

    • Liter: 5.7
    • SubModel: SS
    • CUI: 350
    • EngineType: V8

    1980-1982 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1986-1993 FORD MUSTANG

    • EngineType: ALL
    • SubModel: GT

    1969 CHEVROLET CAMARO

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1974 GMC K15/K1500 SUBURBAN

    • EngineType: L6
    • SubModel: BASE

    1970 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: BASE

    1977-1979 CHEVROLET K10 SUBURBAN

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SCOTTSDALE

    1995 FORD MUSTANG

    • Liter: 5.0
    • Aspiration: N
    • SubModel: GT
    • Engine Vin: T
    • CUI: 302
    • EngineType: V8

    2010-2011 CHEVROLET CAMARO

    • Liter: 3.6
    • SubModel: LT
    • CUI: 217
    • EngineType: V6

    1972 CHEVROLET CAPRICE

    • Liter: 6.6
    • EngineType: V8
    • SubModel: BASE

    1970-1972 CHEVROLET CAPRICE

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1978-1979 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BASE

    1981-1982 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM

    2013 CHRYSLER 300

    • EngineType: V6
    • SubModel: C LUXURY

    1978-1979 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BASE

    1978-1980 OLDSMOBILE CUTLASS SALON

    • Liter: 5.0
    • EngineType: V8
    • SubModel: BROUGHAM

    1974 GMC C15/C1500 SUBURBAN

    • Liter: 4.1
    • EngineType: L6
    • SubModel: BASE

    2010 FORD MUSTANG

    • Liter: 4.0
    • SubModel: BASE
    • CUI: 245
    • EngineType: V6

    1994-1996 FORD BRONCO

    • EngineType: ALL
    • SubModel: XLT

    1973 CHEVROLET CAPRICE

    • Liter: 5.7
    • SubModel: ESTATE
    • CUI: 350
    • EngineType: V8

    1975 CHEVROLET CAMARO

    • Liter: 4.1
    • SubModel: RS
    • CUI: 250
    • EngineType: L6

    1980-1981 OLDSMOBILE CUTLASS CRUISER

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BROUGHAM

    1973 CHEVROLET CAPRICE

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CLASSIC

    1982 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1975-1976 BUICK SKYLARK

    • Liter: 4.3
    • SubModel: SR
    • CUI: 260
    • EngineType: V8

    1976 BUICK SKYLARK

    • Liter: 5.7
    • SubModel: S
    • CUI: 350
    • EngineType: V8

    1979-1980 GMC K1500 SUBURBAN

    • EngineType: L6
    • SubModel: SIERRA CLASSIC

    2001 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SVT COBRA

    1973-1974 CHEVROLET K10 SUBURBAN

    • EngineType: L6
    • SubModel: BASE

    1985 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1973-1974 CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • SubModel: BASE
    • CUI: 350
    • EngineType: V8

    1975 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: BASE

    1975-1977 CHEVROLET K10 SUBURBAN

    • EngineType: L6
    • SubModel: SILVERADO

    1993 FORD BRONCO

    • EngineType: ALL
    • SubModel: XLT LARIAT

    1980-1981 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • SubModel: BROUGHAM
    • CUI: 350
    • EngineType: V8

    1991-1992 FORD BRONCO

    • EngineType: V8
    • SubModel: XL

    1976 BUICK SKYLARK

    • Liter: 4.3
    • SubModel: S
    • CUI: 260
    • EngineType: V8

    1975-1978 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: BASE

    1975 CHEVROLET C10 SUBURBAN

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1973 GMC K15/K1500 SUBURBAN

    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1967-1969 CHEVROLET CAPRICE

    • CC: 4097
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6

    1979 OLDSMOBILE CUTLASS SUPREME

    • Liter: 5.7
    • EngineType: V8
    • SubModel: BROUGHAM

    1985 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: CUSTOM
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