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Flowmaster 42443

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

Flowmaster 42443

389-42443

Flowmaster 42443 40 Series Original Muffler Offset In/Offset Out: 2.25" $85.86
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JEGS Performance Products Chambered Deep-Tone Muffler 2.25" Offset Inlet / Offset Outlet
JEGS Performance Products 555-30212
$29.99
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40 Series Original Muffler
  • Offset In/Offset Out: 2.25"
  • Aluminized Steel

  • Flowmaster 42443 Details

    Offset In/Offset Out

    Universal Muffler - Not a direct fit. Some adaptation required.

  • 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
    Inlet Position
    Offset
    Outlet Position
    Offset
    Muffler Count
    1
    Inlet Connection Type
    Pipe Connection
    Sound Level
    Aggressive Sound
    Muffler Type
    Reflection
    Outlet Location
    Offset
    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
    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 designed for street/strip and off-road use. These aggressive sounding mufflers deliver a powerful, classic "Flowmaster Sound" from both inside and outside of the vehicle. Give your exhaust system a great muscle car tone with one of these fully MIG welded 40 Series original mufflers.

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


  • Does Flowmaster 42443 fit your vehicle?

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    1973 CHEVROLET CAPRICE

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

    1973 CHEVROLET CAPRICE

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

    1973 CHEVROLET CAPRICE

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

    1970 PONTIAC FIREBIRD

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

    1976 GMC C15 SUBURBAN

    • EngineType: ALL
    • SubModel: HIGH SIERRA

    1975-1977 CHEVROLET K10 SUBURBAN

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

    1973 CHEVROLET CAPRICE

    • CC: 6556
    • Liter: 6.6
    • SubModel: ESTATE
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1976 CHEVROLET K5 BLAZER

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

    1975-1976 BUICK SKYLARK

    • Liter: 4.3
    • SubModel: SR
    • CUI: 260
    • EngineType: V8 ( 4.3 L / 260 )

    1981 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: SPORT

    2013 CHRYSLER 300

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

    1975-1978 GMC K15 SUBURBAN

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

    1978-1980 OLDSMOBILE CUTLASS CALAIS

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

    2010 CHRYSLER 300

    • CC: 2700
    • Liter: 2.7
    • Aspiration: N
    • SubModel: TOURING
    • Engine Vin: D
    • CUI: 167
    • EngineType: V6 ( 2.7 L / 167 )

    1979 CHEVROLET K10 SUBURBAN

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

    1977-1979 CHEVROLET K10 SUBURBAN

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

    2011-2013 DODGE CHALLENGER

    • EngineType: ALL
    • SubModel: SXT PLUS

    1988 OLDSMOBILE CUTLASS SUPREME

    • EngineType: ALL
    • SubModel: CLASSIC

    2005 CHRYSLER 300

    • EngineType: ALL
    • SubModel: BASE

    1977 BUICK SKYLARK

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

    1973 CHEVROLET CAMARO

    • CC: 5737
    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8 ( 5.7 L / 350 )

    2005-2009 CHRYSLER 300

    • EngineType: ALL
    • SubModel: TOURING

    1975-1978 GMC K15 SUBURBAN

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

    1980 OLDSMOBILE CUTLASS CRUISER

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

    2010 CHRYSLER 300

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

    2006-2007 CHRYSLER 300

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

    1982-1985 OLDSMOBILE CUTLASS SUPREME

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

    1986 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1980 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1981 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1991-1992 FORD BRONCO

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

    2006-2010 DODGE CHARGER

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

    1976 GMC C15 SUBURBAN

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

    2010 DODGE CHARGER

    • Liter: 5.7
    • Aspiration: N
    • SubModel: R/T
    • Engine Vin: T
    • CUI: 345
    • EngineType: V8 ( 5.7 L / 345 )

    1985 OLDSMOBILE CUTLASS SUPREME

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

    2013 CHRYSLER 300

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

    1986 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1975-1978 GMC K15 SUBURBAN

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

    1976 GMC C15 SUBURBAN

    • EngineType: ALL
    • SubModel: SIERRA GRANDE

    1981 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: DELUXE

    1972 CHEVROLET CAPRICE

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

    1970 CHEVROLET CAMARO

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

    2009-2010 DODGE CHALLENGER

    • Liter: 5.7
    • SubModel: R/T
    • CUI: 345
    • EngineType: V8 ( 5.7 L / 345 )

    1970 PONTIAC FIREBIRD

    • CC: 6555
    • Liter: 6.6
    • SubModel: ESPRIT
    • CUI: 400
    • EngineType: V8 ( 6.6 L / 400 )

    1990 FORD BRONCO

    • EngineType: ALL
    • SubModel: EDDIE BAUER

    1977-1978 CHEVROLET K5 BLAZER

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

    1974 GMC K15/K1500 SUBURBAN

    • EngineType: ALL
    • SubModel: ALL

    1981-1983 OLDSMOBILE CUTLASS CRUISER

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

    1970-1971 CHEVROLET CAPRICE

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    2005-2008 DODGE MAGNUM

    • EngineType: ALL
    • SubModel: SE

    2012 CHRYSLER 300

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

    1985 OLDSMOBILE CUTLASS SUPREME

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

    1980 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1982 CHEVROLET C10 SUBURBAN

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

    1978-1979 OLDSMOBILE CUTLASS SALON

    • EngineType: ALL
    • SubModel: 442

    1975-1976 BUICK SKYLARK

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

    1985 CHEVROLET K10 SUBURBAN

    • EngineType: ALL
    • SubModel: SILVERADO

    1972 CHEVROLET CAPRICE

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

    1982-1984 OLDSMOBILE CUTLASS CALAIS

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

    1974 CHEVROLET CAMARO

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

    1968-1969 CHEVROLET CAMARO

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1979 GMC K1500 SUBURBAN

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

    1990 FORD BRONCO

    • EngineType: ALL
    • SubModel: XL

    1976 CHEVROLET CAMARO

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

    1983 OLDSMOBILE CUTLASS SUPREME

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

    2005 DODGE MAGNUM

    • EngineType: ALL
    • SubModel: SXT SPECIAL EDITION

    1976-1978 GMC JIMMY

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

    1976 CHEVROLET C10 SUBURBAN

    • EngineType: ALL
    • SubModel: SCOTTSDALE

    1993 FORD BRONCO

    • EngineType: ALL
    • SubModel: CUSTOM

    2009 CHRYSLER 300

    • EngineType: ALL
    • SubModel: SIGNATURE SERIES

    1975 PONTIAC FIREBIRD

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

    1973 CHEVROLET CAPRICE

    • CC: 7441
    • Liter: 7.4
    • SubModel: CLASSIC
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    2013 CHRYSLER 300

    • EngineType: ALL
    • SubModel: TOURING

    1974 CHEVROLET C10 SUBURBAN

    • CC: 4098
    • Liter: 4.1
    • SubModel: BASE
    • CUI: 250
    • EngineType: L6 ( 4.1 L / 250 )

    1966-1969 CHEVROLET CAPRICE

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

    2006-2007 DODGE CHARGER

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

    1973 GMC K15/K1500 SUBURBAN

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

    1974 GMC C15/C1500 SUBURBAN

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

    1973-1974 CHEVROLET K10 SUBURBAN

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

    1978 CHEVROLET K5 BLAZER

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

    1980 OLDSMOBILE CUTLASS SALON

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

    1980 OLDSMOBILE CUTLASS

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

    1983 OLDSMOBILE CUTLASS CALAIS

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

    1982-1985 OLDSMOBILE CUTLASS SUPREME

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

    1968-1969 CHEVROLET CAPRICE

    • Liter: 5.4
    • SubModel: BASE
    • CUI: 327
    • EngineType: V8 ( 5.4 L / 327 )

    1992 FORD BRONCO

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

    1971 CHEVROLET CAPRICE

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

    1982-1983 OLDSMOBILE CUTLASS CRUISER

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

    1979-1980 GMC K1500 SUBURBAN

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

    2003-2004 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SVT COBRA

    2012-2013 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LS

    2008-2009 DODGE CHARGER

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

    1972 CHEVROLET CAPRICE

    • CC: 7441
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8 ( 7.4 L / 454 )

    1975 PONTIAC FIREBIRD

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

    1993-1996 FORD BRONCO

    • EngineType: ALL
    • SubModel: XL

    2008-2009 CHRYSLER 300

    • EngineType: ALL
    • SubModel: LX

    1975 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: BASE

    1973 GMC K15/K1500 SUBURBAN

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

    2013 CHRYSLER 300

    • EngineType: ALL
    • SubModel: BASE

    1980 OLDSMOBILE CUTLASS SUPREME

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