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Flowmaster 42543

40 Series Original Muffler Offset In/Offset Out: 2.5"

Flowmaster 42543

389-42543

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Flowmaster 42543 40 Series Original Muffler Offset In/Offset Out: 2.5" $85.86
40 Series Original Muffler
  • Offset In/Offset Out: 2.5"
  • Aluminized Steel

  • Flowmaster 42543 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.)
    2.5
    Outlet Size (in.)
    2.5
    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
    Outlet Location
    Offset
    Inlet Diameter (in.)
    2.5
    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 Diameter (in.)
    2.5
    Inlet Quantity
    One
    Manufacturer's Part Number:
    42543

    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 42543 fit your vehicle?

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    1981 CHEVROLET BLAZER K5

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

    1975-1980 CHEVROLET C20 PICKUP

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

    1975-1980 CHEVROLET C30 PICKUP

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

    2008 DODGE DAKOTA

    • Liter: 3.7
    • SubModel: TRX4
    • CUI: 226
    • EngineType: V6 ( 3.7 L / 226 )

    1969-1970 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: RS

    1980 CHEVROLET K20 PICKUP

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

    1975-1980 CHEVROLET C30 PICKUP

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

    1968 CHEVROLET CAMARO

    • CC: 3769
    • Liter: 3.8
    • SubModel: RS
    • CUI: 230
    • EngineType: L6 ( 3.8 L / 230 )

    1981 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: BERLINETTA

    1972-1974 PONTIAC FIREBIRD

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

    1967 CHEVROLET CHEVELLE

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

    1975-1980 CHEVROLET C20 PICKUP

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

    1976-1980 CHEVROLET C10 PICKUP

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

    2008-2009 FORD MUSTANG

    • EngineType: ALL
    • SubModel: SHELBY GT500KR

    1980 CHEVROLET K20 PICKUP

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

    1970-1974 PONTIAC FIREBIRD

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

    1974 CHEVROLET BLAZER

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

    2005-2006 FORD F-150

    • Liter: 4.2
    • Aspiration: N
    • SubModel: XL
    • Engine Vin: 2
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1978-1979 CHEVROLET C30 PICKUP

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

    1972-1973 CHEVROLET CAMARO

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

    1993 GMC K1500

    • Liter: 4.3
    • SubModel: SIERRA
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1988-1993 CHEVROLET K2500 PICKUP

    • Liter: 4.3
    • SubModel: SILVERADO
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1988-1992 GMC K1500 PICKUP

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

    1976 CHEVROLET K5 BLAZER

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

    1975-1979 GMC JIMMY

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

    1979-1980 CHEVROLET K10 PICKUP

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

    1977-1979 CHEVROLET C10 PICKUP

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

    1976 CHEVROLET K5 BLAZER

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

    1977-1979 CHEVROLET C30 PICKUP

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

    2010 FORD MUSTANG

    • Liter: 4.6
    • Aspiration: N
    • SubModel: GT
    • Engine Vin: H
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    1977 CHEVROLET K30 PICKUP

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

    1977-1978 CHEVROLET K5 BLAZER

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

    1988-1993 CHEVROLET C1500 PICKUP

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

    1975-1980 CHEVROLET C30 PICKUP

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

    1976 CHEVROLET CAMARO

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

    1967-1970 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: SS

    1972-1973 CHEVROLET CAMARO

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

    1975-1979 GMC JIMMY

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

    1999-2001 LINCOLN NAVIGATOR

    • Liter: 5.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: A
    • CUI: 330
    • EngineType: V8 ( 5.4 L / 330 )

    1970-1974 PONTIAC FIREBIRD

    • CC: 7456
    • Liter: 7.5
    • SubModel: BASE
    • CUI: 455
    • EngineType: V8 ( 7.5 L / 455 )

    2008-2009 FORD MUSTANG

    • EngineType: ALL
    • SubModel: BULLITT

    1988-1993 GMC K2500 PICKUP

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

    1988-1993 GMC K2500 PICKUP

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

    1975-1980 CHEVROLET C30 PICKUP

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

    1977-1980 CHEVROLET K30 PICKUP

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

    1977-1980 CHEVROLET K30 PICKUP

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

    1988-1992 CHEVROLET K2500 PICKUP

    • Liter: 4.3
    • SubModel: SCOTTSDALE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    2002 DODGE DAKOTA

    • Liter: 4.7
    • SubModel: SXT
    • CUI: 285
    • EngineType: V8 ( 4.7 L / 285 )

    1976-1978 CHEVROLET K20 PICKUP

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

    1975-1979 GMC JIMMY

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

    1970-1975 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    2005 DODGE DAKOTA

    • EngineType: ALL
    • SubModel: SPORT

    2008 DODGE DAKOTA

    • Liter: 4.7
    • SubModel: TRX4
    • CUI: 285
    • EngineType: V8 ( 4.7 L / 285 )

    1977-1981 GMC JIMMY

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

    1998-1999 DODGE DAKOTA

    • EngineType: ALL
    • SubModel: R/T

    1965 CHEVROLET CHEVELLE

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

    1993 GMC K1500

    • Liter: 4.3
    • SubModel: SIERRA SLE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1988-1993 CHEVROLET C1500 PICKUP

    • Liter: 4.3
    • SubModel: SILVERADO
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1975-1980 CHEVROLET K10 PICKUP

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

    1976 CHEVROLET K10 PICKUP

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

    1969 CHEVROLET CAMARO

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

    1968 CHEVROLET CAMARO

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

    1977-1979 CHEVROLET K10 PICKUP

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

    1977-1979 CHEVROLET C10 PICKUP

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

    1977-1979 CHEVROLET C20 PICKUP

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

    1975-1980 CHEVROLET K10 PICKUP

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

    1997 FORD F-150

    • Liter: 4.2
    • SubModel: XLT
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1976-1980 CHEVROLET C20 PICKUP

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

    1974 CHEVROLET CAMARO

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

    1977-1979 CHEVROLET C30 PICKUP

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

    1967-1970 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1975-1980 CHEVROLET C10 PICKUP

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

    1993 GMC K1500

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

    1975-1980 CHEVROLET C30 PICKUP

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

    1977-1979 CHEVROLET C10 PICKUP

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

    1977-1980 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: ALL

    2007 DODGE DAKOTA

    • CC: 3701
    • Liter: 3.7
    • SubModel: LARAMIE
    • CUI: 226
    • EngineType: V6 ( 3.7 L / 226 )

    1973 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1988-1993 CHEVROLET C2500 PICKUP

    • Liter: 4.3
    • SubModel: CHEYENNE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1976-1978 CHEVROLET K20 PICKUP

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

    1997 FORD F-150

    • Liter: 4.2
    • SubModel: XL
    • CUI: 256
    • EngineType: V6 ( 4.2 L / 256 )

    1972-1973 CHEVROLET CAMARO

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

    2008 FORD F-150

    • EngineType: ALL
    • SubModel: LIMITED

    1972-1973 CHEVROLET CAMARO

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

    1988-1993 GMC C2500 PICKUP

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

    1977-1979 CHEVROLET C30 PICKUP

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

    2006-2007 DODGE DAKOTA

    • CC: 3701
    • Liter: 3.7
    • SubModel: SLT
    • CUI: 226
    • EngineType: V6 ( 3.7 L / 226 )

    1980 CHEVROLET K20 PICKUP

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

    2000-2003 FORD F-150

    • EngineType: ALL
    • SubModel: HARLEY-DAVIDSON EDITION

    1980 CHEVROLET K30 PICKUP

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

    2004 FORD F-150 HERITAGE

    • EngineType: ALL
    • SubModel: SVT LIGHTNING

    1980 CHEVROLET C20 PICKUP

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

    1999-2002 FORD EXPEDITION

    • Liter: 4.6
    • Aspiration: N
    • SubModel: XLT
    • Engine Vin: W
    • CUI: 281
    • EngineType: V8 ( 4.6 L / 281 )

    1980 CHEVROLET K30 PICKUP

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

    1973 CHEVROLET CAMARO

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

    1973 CHEVROLET CAMARO

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

    1988-1992 GMC K1500 PICKUP

    • Liter: 4.3
    • SubModel: SIERRA SLE
    • CUI: 262
    • EngineType: V6 ( 4.3 L / 262 )

    1988-1993 CHEVROLET C2500 PICKUP

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

    1976-1978 CHEVROLET K5 BLAZER

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

    1988 CHEVROLET K1500 PICKUP

    • EngineType: ALL
    • SubModel: BASE
    42543 - Flowmaster 40 Series Original Mufflers is rated 4.0 out of 5 by 1.
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