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Flowmaster 42543

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



Flowmaster 42543

Part Number: 389-42543

40 Series Original Muffler
  • Offset In/Offset Out: 2.5"
  • Aluminized Steel
  • $83.76
    Ships
    Flowmaster 42543 40 Series Original Muffler Offset In/Offset Out: 2.5" $83.76

    Flowmaster 42543 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.)
    2.5
    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
    Inlet Diameter (in.)
    2.5
    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
    Outlet Diameter (in.)
    2.5
    Manufacturer's Part Number:
    42543

    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 42543 fit your vehicle?

    Narrow Results

    1981 CHEVROLET BLAZER K5

    • Liter: 5.0
    • EngineType: V8
    • SubModel: DELUXE

    1975-1978 CHEVROLET C20 PICKUP

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

    1975 CHEVROLET K5 BLAZER

    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1988-1993 CHEVROLET C2500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHEYENNE

    2008 DODGE DAKOTA

    • Liter: 4.7
    • SubModel: LARAMIE
    • CUI: 285
    • EngineType: V8

    1976 CHEVROLET C30 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CHEYENNE

    1965-1967 CHEVROLET CHEVELLE

    • EngineType: V8
    • SubModel: DELUXE

    1997-1999 DODGE DAKOTA

    • EngineType: V8
    • SubModel: SPORT

    2004 DODGE DAKOTA

    • EngineType: V8
    • SubModel: SPORT PLUS

    1976 CHEVROLET CAMARO

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

    1974 CHEVROLET CAMARO

    • Liter: 5.7
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 350
    • EngineType: V8

    1970 CHEVROLET CAMARO

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

    1978 CHEVROLET C30 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1978 CHEVROLET K10 PICKUP

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

    2000-2003 FORD F-150

    • EngineType: ALL
    • SubModel: HARLEY-DAVIDSON EDITION

    1997-1998 FORD EXPEDITION

    • Liter: 5.4
    • SubModel: XLT
    • CUI: 330
    • EngineType: V8

    1988-1993 CHEVROLET K2500 PICKUP

    • EngineType: V6
    • SubModel: CHEYENNE

    1975 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: BASE

    1977 CHEVROLET CAMARO

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

    1988-1992 GMC K1500 PICKUP

    • EngineType: V6
    • SubModel: SIERRA

    1967 CHEVROLET CAMARO

    • Liter: 4.6
    • EngineType: V8
    • SubModel: BASE

    1975 CHEVROLET C10 PICKUP

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

    1978 CHEVROLET C30 PICKUP

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

    1970-1974 PONTIAC FIREBIRD

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

    1979-1980 CHEVROLET K20 PICKUP

    • EngineType: V8
    • SubModel: SCOTTSDALE

    1997 FORD F-150

    • EngineType: V6
    • SubModel: XL

    1997-2008 FORD F-150

    • EngineType: V8
    • SubModel: XL

    1979-1980 CHEVROLET K30 PICKUP

    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1974 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1976-1979 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: RALLY SPORT

    2008 DODGE DAKOTA

    • Liter: 4.7
    • SubModel: SPORT
    • CUI: 285
    • EngineType: V8

    1998-1999 LINCOLN NAVIGATOR

    • Liter: 5.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: L
    • CUI: 330
    • EngineType: V8

    1990-1993 CHEVROLET K1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: WT

    1975 CHEVROLET C10 PICKUP

    • Liter: 5.7
    • EngineType: V8
    • SubModel: SILVERADO

    1968 CHEVROLET CHEVELLE

    • Liter: 5.0
    • EngineType: V8
    • SubModel: 300 DELUXE

    1976 CHEVROLET CAMARO

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

    1979-1980 CHEVROLET C10 PICKUP

    • EngineType: V8
    • SubModel: SCOTTSDALE

    1977-1980 CHEVROLET K30 PICKUP

    • EngineType: V8
    • SubModel: CHEYENNE

    1977-1979 CHEVROLET CAMARO

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

    1970-1974 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: FORMULA

    1977 CHEVROLET K30 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1975 GMC JIMMY

    • EngineType: V8
    • SubModel: BASE

    1991 CHEVROLET K1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: SPORT

    1988-1993 GMC C1500 PICKUP

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

    1976 CHEVROLET C30 PICKUP

    • Liter: 7.4
    • EngineType: V8
    • SubModel: CHEYENNE

    2005 DODGE DAKOTA

    • Liter: 3.7
    • Aspiration: N
    • SubModel: SLT
    • Engine Vin: K
    • CUI: 226
    • EngineType: V6

    1970 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: SS

    1967-1969 CHEVROLET CAMARO

    • EngineType: L6
    • SubModel: BASE

    1975 CHEVROLET K10 PICKUP

    • EngineType: V8
    • SubModel: SILVERADO

    1977 CHEVROLET K10 PICKUP

    • EngineType: V8
    • SubModel: SCOTTSDALE

    1979-1980 CHEVROLET K20 PICKUP

    • EngineType: V8
    • SubModel: SILVERADO

    1970 PONTIAC FIREBIRD

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

    1999-2002 FORD EXPEDITION

    • Liter: 4.6
    • Aspiration: N
    • SubModel: XLT
    • Engine Vin: W
    • CUI: 281
    • EngineType: V8

    1999-2000 FORD EXPEDITION

    • Liter: 4.6
    • Aspiration: N
    • SubModel: XLT
    • Engine Vin: 6
    • CUI: 281
    • EngineType: V8

    2001-2002 LINCOLN NAVIGATOR

    • Liter: 5.4
    • Aspiration: N
    • SubModel: BASE
    • Engine Vin: R
    • CUI: 330
    • EngineType: V8

    1979-1980 CHEVROLET K10 PICKUP

    • EngineType: V8
    • SubModel: SILVERADO

    1977-1978 CHEVROLET K30 PICKUP

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

    1988-1993 CHEVROLET C1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHEYENNE

    1979-1980 CHEVROLET C10 PICKUP

    • EngineType: V8
    • SubModel: SILVERADO

    1970 CHEVROLET CHEVELLE

    • Liter: 6.5
    • EngineType: V8
    • SubModel: MALIBU

    1977-1979 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1976 CHEVROLET K10 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: SILVERADO

    1979-1980 CHEVROLET K10 PICKUP

    • EngineType: V8
    • SubModel: SCOTTSDALE

    1980-1981 CHEVROLET BLAZER K5

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

    1990-1993 CHEVROLET C1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: WT

    1976 CHEVROLET K5 BLAZER

    • Liter: 5.7
    • EngineType: V8
    • SubModel: CHEYENNE

    1967-1969 CHEVROLET CAMARO

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

    1973 CHEVROLET BLAZER

    • EngineType: ALL
    • SubModel: ALL

    1988-1993 CHEVROLET C2500 PICKUP

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

    2002-2003 DODGE DAKOTA

    • Liter: 4.7
    • EngineType: V8
    • SubModel: BASE

    1976 CHEVROLET CAMARO

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

    1975-1976 CHEVROLET K5 BLAZER

    • EngineType: V8
    • SubModel: BASE

    1979 GMC JIMMY

    • EngineType: V8
    • SubModel: HIGH SIERRA

    1976-1977 CHEVROLET K20 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: SCOTTSDALE

    2008 FORD F-150

    • EngineType: ALL
    • SubModel: LIMITED

    1979 GMC JIMMY

    • EngineType: V8
    • SubModel: SIERRA GRANDE

    1988-1993 CHEVROLET K1500 PICKUP

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

    1967 CHEVROLET CAMARO

    • Liter: 4.9
    • EngineType: V8
    • SubModel: BASE

    1969 CHEVROLET CAMARO

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

    2008 DODGE DAKOTA

    • EngineType: V6
    • SubModel: SPORT

    1975 CHEVROLET K10 PICKUP

    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1968 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: BASE
    • CUI: 307
    • EngineType: V8

    1970 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: BASE

    1988-1993 CHEVROLET K1500 PICKUP

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CHEYENNE

    1975 CHEVROLET K20 PICKUP

    • EngineType: V8
    • SubModel: SILVERADO

    1977 CHEVROLET K20 PICKUP

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

    2001-2003 FORD F-150

    • EngineType: ALL
    • SubModel: KING RANCH

    1979-1980 CHEVROLET C10 PICKUP

    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1979 CHEVROLET BLAZER K5

    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1998-2003 FORD F-150

    • Liter: 4.2
    • Aspiration: N
    • SubModel: XL
    • Engine Vin: 2
    • CUI: 256
    • EngineType: V6

    1977-1978 CHEVROLET K5 BLAZER

    • Liter: 5.0
    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1997-2000 FORD F-150

    • EngineType: ALL
    • SubModel: BASE

    1975 CHEVROLET K20 PICKUP

    • EngineType: V8
    • SubModel: CUSTOM DELUXE

    1976-1977 CHEVROLET C20 PICKUP

    • Liter: 6.6
    • EngineType: V8
    • SubModel: SILVERADO

    2008 DODGE DAKOTA

    • EngineType: V6
    • SubModel: TRX4

    2005-2006 FORD F-150

    • Liter: 4.2
    • Aspiration: N
    • SubModel: XL
    • Engine Vin: 2
    • CUI: 256
    • EngineType: V6

    1988-1992 GMC K1500 PICKUP

    • EngineType: V6
    • SubModel: SIERRA SLE

    2008 DODGE DAKOTA

    • Liter: 4.7
    • SubModel: TRX
    • CUI: 285
    • EngineType: V8

    1975 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: BASE

    1974 CHEVROLET BLAZER

    • CC: 7439
    • Liter: 7.4
    • SubModel: BASE
    • CUI: 454
    • EngineType: V8
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