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Flowmaster 42583

80 Series Crossflow Muffler Offset In/Dual Out: 2.5"



Flowmaster 42583

Part Number: 389-42583

80 Series Crossflow Muffler
  • Offset In/Dual Out: 2.5"
  • Case: 15" L (4" Thick)
  • Overall: 21" L x 9.75" W
  • Aluminized Steel
  • $119.97
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    Flowmaster 42583 80 Series Crossflow Muffler Offset In/Dual Out: 2.5" $119.97

    Flowmaster 42583 Details

    Offset In/Dual Out

  • Adds 30 HP and 40 ft/lbs TQ
  • Single inlet with dual outlets for a stock dual exhaust appearance (fits in the stock crossflow position)

  • Specifications:

    Body Length (in.)
    15
    Inlet Size (in.)
    2.5
    Outlet Size (in.)
    2.5
    Overall Length (in.)
    21
    Body Height (in.)
    4
    Body Width (in.)
    9.75
    Width (in.)
    9.75
    Material
    Aluminized Steel
    Outlet Type
    Dual Opposite End Outlet
    Shape
    Oval
    Inlet Type
    Single Offset Inlet
    Position
    N/A
    Inlet Position
    Offset
    Outlet Position
    Offset
    Body Length (in.)
    15.0
    Inlet Connection Type
    Pipe Connection
    Inlet Diameter (in.)
    2.5
    Case Length (in.)
    15
    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
    Two
    Thickness (in.)
    4
    Inlet Location
    Offset
    Outlet Location
    Offset
    Outlet Diameter (in.)
    2.5
    Manufacturer's Part Number:
    42583

    Flowmaster's 80 Series Crossflow Mufflers fit transversely behind the rear axle and in front of the fuel tank, making them ideal OE replacements yet with enhanced performance and sound.



    Features
  • For true dual exhaust output when only one exhaust system will fit
  • Aggressive exterior sound with noticeable interior resonance
  • Increased power, torque, and ground clearance
  • Aluminized steel or 409S stainless steel (stainless has limited lifetime warranty)
  • MIG welded for maximum durability

  • Does Flowmaster 42583 fit your vehicle?

    Narrow Results

    1967 CHEVROLET CAMARO

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

    1993 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: INDIANAPOLIS 500 PACE CAR
    • CUI: 350
    • EngineType: V8

    1994-1997 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8

    1981-1986 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: BERLINETTA

    1975 CHEVROLET CAMARO

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

    1977-1979 CHEVROLET CAMARO

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

    1985-1987 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: IROC-Z

    1974 CHEVROLET CAMARO

    • EngineType: L6
    • SubModel: BASE

    1989 CHEVROLET CAMARO

    • Liter: 2.8
    • SubModel: RS
    • CUI: 173
    • EngineType: V6

    1989-1992 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM GTA
    • CUI: 305
    • EngineType: V8

    1982-1983 CHEVROLET CAMARO

    • EngineType: L4
    • SubModel: BASE

    1993 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1985 PONTIAC FIREBIRD

    • EngineType: V6
    • SubModel: BASE

    1987-1988 PONTIAC FIREBIRD

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

    1993-1995 CHEVROLET CAMARO

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

    1982 PONTIAC FIREBIRD

    • EngineType: V6
    • SubModel: BASE

    1984 CHEVROLET CAMARO

    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8

    1967-1969 CHEVROLET CAMARO

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

    1970 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: BASE

    1997 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28 30TH ANNIVERSARY EDITION

    1982-1986 CHEVROLET CAMARO

    • CC: 2474
    • Liter: 2.5
    • SubModel: SPORT
    • CUI: 151
    • EngineType: L4

    2002 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8

    1974 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1970 CHEVROLET CAMARO

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

    1983-1984 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1991-1992 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8

    1985 PONTIAC FIREBIRD

    • EngineType: V8
    • SubModel: BASE

    1980 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: ALL

    1992 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28 HERITAGE EDITION

    1982 PONTIAC FIREBIRD

    • EngineType: V8
    • SubModel: BASE

    1977-1979 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: BASE

    1986-1989 PONTIAC FIREBIRD

    • Liter: 2.8
    • SubModel: BASE
    • CUI: 173
    • EngineType: V6

    1976-1979 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: RALLY SPORT

    1982 PONTIAC FIREBIRD

    • EngineType: V8
    • SubModel: S/E

    1986-1987 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8

    1997 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8

    1968-1969 CHEVROLET CAMARO

    • Liter: 5.4
    • EngineType: V8
    • SubModel: BASE

    1976 CHEVROLET CAMARO

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

    1983-1984 PONTIAC FIREBIRD

    • Liter: 2.8
    • SubModel: BASE
    • CUI: 173
    • EngineType: V6

    1969 CHEVROLET CAMARO

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

    1975 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: BASE

    1978 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LT

    1968 CHEVROLET CAMARO

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

    1983-1984 PONTIAC FIREBIRD

    • Liter: 2.8
    • SubModel: S/E
    • CUI: 173
    • EngineType: V6

    1982 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28 INDIANAPOLIS 500 PACE CAR

    1977 CHEVROLET CAMARO

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

    1974 CHEVROLET CAMARO

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

    1985 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: S/E

    1998-2001 PONTIAC FIREBIRD

    • Liter: 5.7
    • Aspiration: N
    • SubModel: TRANS AM
    • Engine Vin: G
    • CUI: 350
    • EngineType: V8

    1989-1992 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: FORMULA
    • CUI: 305
    • EngineType: V8

    1976 CHEVROLET CAMARO

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

    1985-1987 CHEVROLET CAMARO

    • Liter: 2.8
    • SubModel: SPORT
    • CUI: 173
    • EngineType: V6

    1995 CHEVROLET CAMARO

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1985-1987 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • EngineType: V8

    1981 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1999-2002 CHEVROLET CAMARO

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1986-1987 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: BASE
    • CUI: 305
    • EngineType: V8

    1994 CHEVROLET CAMARO

    • Liter: 5.7
    • SubModel: Z28
    • CUI: 350
    • EngineType: V8

    1982 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    1971-1973 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: ALL

    1967 CHEVROLET CAMARO

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

    1985 PONTIAC FIREBIRD

    • EngineType: ALL
    • SubModel: TRANS AM

    1989-2002 PONTIAC FIREBIRD

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

    1967-1970 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: RS

    1986 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: S/E
    • CUI: 305
    • EngineType: V8

    1977-1979 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1982-1984 CHEVROLET CAMARO

    • Liter: 2.8
    • SubModel: SPORT
    • CUI: 173
    • EngineType: V6

    1982-1987 CHEVROLET CAMARO

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

    1989 PONTIAC FIREBIRD

    • CC: 3800
    • Liter: 3.8
    • SubModel: TRANS AM GTA SE
    • CUI: 231
    • EngineType: V6

    1982-1983 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • EngineType: V8

    1981 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: SPORT

    1987-1993 PONTIAC FIREBIRD

    • Liter: 5.7
    • SubModel: TRANS AM
    • CUI: 350
    • EngineType: V8

    1995-1996 CHEVROLET CAMARO

    • Liter: 5.7
    • Aspiration: N
    • SubModel: Z28
    • Engine Vin: P
    • CUI: 350
    • EngineType: V8

    1992 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: RS HERITAGE EDITION

    1967-1970 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: Z28

    1986 PONTIAC FIREBIRD

    • Liter: 2.8
    • SubModel: S/E
    • CUI: 173
    • EngineType: V6

    1986 CHEVROLET CAMARO

    • Liter: 5.0
    • SubModel: Z28
    • CUI: 305
    • EngineType: V8

    1990-1992 PONTIAC FIREBIRD

    • Liter: 3.1
    • SubModel: BASE
    • CUI: 189
    • EngineType: V6

    1979 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: BERLINETTA

    1987 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LT

    1975 CHEVROLET CAMARO

    • EngineType: ALL
    • SubModel: LT

    1974 CHEVROLET CAMARO

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

    1967-1969 CHEVROLET CAMARO

    • EngineType: L6
    • SubModel: BASE

    1974 CHEVROLET CAMARO

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

    1986-1992 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8

    1991-1992 CHEVROLET CAMARO

    • CC: 5031
    • Liter: 5.0
    • SubModel: Z28
    • EngineType: V8

    1989 PONTIAC FIREBIRD

    • CC: 3800
    • Liter: 3.8
    • SubModel: TRANS AM
    • CUI: 231
    • EngineType: V6

    1975 CHEVROLET CAMARO

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

    1975 CHEVROLET CAMARO

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

    1974 CHEVROLET CAMARO

    • CC: 5736
    • Liter: 5.7
    • SubModel: LT
    • EngineType: V8

    1982 PONTIAC FIREBIRD

    • EngineType: V6
    • SubModel: S/E

    1998-2002 PONTIAC FIREBIRD

    • CC: 3800
    • Liter: 3.8
    • SubModel: BASE
    • CUI: 231
    • EngineType: V6

    1977 CHEVROLET CAMARO

    • EngineType: V8
    • SubModel: LT

    1989-1992 CHEVROLET CAMARO

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

    1990-1992 CHEVROLET CAMARO

    • Liter: 3.1
    • SubModel: RS
    • CUI: 189
    • EngineType: V6

    1967-1969 CHEVROLET CAMARO

    • Liter: 5.3
    • EngineType: V8
    • SubModel: BASE

    1974 CHEVROLET CAMARO

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

    1988 CHEVROLET CAMARO

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

    1983-1984 PONTIAC FIREBIRD

    • Liter: 5.0
    • SubModel: TRANS AM
    • CUI: 305
    • EngineType: V8

    1976 CHEVROLET CAMARO

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