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Flowmaster 817457 - Flowmaster American Thunder Exhaust Systems - Cars

Flowmaster 817457 - Flowmaster American Thunder Exhaust Systems - Cars

Flowmaster#389-817457

American Thunder Header-Back Exhaust System
  • 1978-88 GM A-Body/G-Body V8
  • 2.5" Tubing, 3" Polished SS Tips
  • Dual Rear Exit
  • Super 44 Series Muffler
  • 409S Stainless Steel
    • Fits Applications:
    • 1978-1981
      BUICK
      1986-1987
      BUICK
      1978-1988
      CHEVROLET
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    Flowmaster 817457 - Flowmaster American Thunder Exhaust Systems - Cars Details

    GM A-Body/G-Body

    For the person who is looking for a complete header-back dual exhaust system with an aggressive tone. With easy fit in mind, these systems are mandrel bent for maximum performance and include specially selected mufflers. This American Thunder system delivers an aggressive interior and exterior tone and is suited to the enthusiast who wants their performance to be heard. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts and hardware for easy installation. Note: requires the use of a double hump cross member.

    Applications:

  • 1978 - 1980, 1986 - 1987 BUICK REGAL V8 5 GAS CARB
  • 1979 - 1980 BUICK REGAL V8 4.9 GAS CARB
  • 1980 - 1981 BUICK REGAL V8 4.3 GAS CARB
  • 1978 - 1980, 1986 - 1987 BUICK REGAL LIMITED V8 5 GAS CARB
  • 1979 - 1980 BUICK REGAL LIMITED V8 4.9 GAS CARB
  • 1980 - 1981 BUICK REGAL LIMITED V8 4.3 GAS CARB
  • 1978 - 1988 CHEVROLET MONTE CARLO V8 5 GAS CARB
  • 1979 - 1982 CHEVROLET MONTE CARLO V8 4.4 GAS CARB
  • 1981 CHEVROLET MONTE CARLO V8 5.7 GAS CARB
  • 1984 - 1988 CHEVROLET MONTE CARLO SS V8 5 GAS CARB
  • 1980 - 1981 OLDSMOBILE CUTLASS V8 4.3 GAS CARB
  • 1980 OLDSMOBILE CUTLASS V8 5 GAS CARB
  • 1980 OLDSMOBILE CUTLASS V8 5.7 GAS CARB
  • 1980 - 1981 OLDSMOBILE CUTLASS LS V8 4.3 GAS CARB
  • 1980 OLDSMOBILE CUTLASS LS V8 5 GAS CARB
  • 1980 OLDSMOBILE CUTLASS LS V8 5.7 GAS CARB
  • 1978 - 1982 OLDSMOBILE CUTLASS CALAIS V8 4.3 GAS CARB
  • 1978 - 1980, 1982 - 1985 OLDSMOBILE CUTLASS CALAIS V8 5 GAS CARB
  • 1979 - 1980 OLDSMOBILE CUTLASS CALAIS V8 5.7 GAS CARB
  • 1978 - 1980 OLDSMOBILE CUTLASS SALON V8 4.3 GAS CARB
  • 1978 - 1980, 1985 - 1987 OLDSMOBILE CUTLASS SALON V8 5 GAS CARB
  • 1979 OLDSMOBILE CUTLASS SALON V8 5.7 GAS CARB
  • 1979 OLDSMOBILE CUTLASS SALON 442 V8 5.7 GAS CARB
  • 1978, 1985 - 1986 OLDSMOBILE CUTLASS SALON 442 V8 5 GAS CARB
  • 1978 - 1982 OLDSMOBILE CUTLASS SUPREME V8 4.3 GAS CARB
  • 1978 - 1980, 1982 - 1988 OLDSMOBILE CUTLASS SUPREME V8 5 GAS CARB
  • 1978 - 1980 OLDSMOBILE CUTLASS SUPREME V8 5.7 GAS CARB
  • 1978 - 1982 OLDSMOBILE CUTLASS SUPREME BROUGHAM V8 4.3 GAS CARB
  • 1978 - 1980, 1982 - 1987 OLDSMOBILE CUTLASS SUPREME BROUGHAM V8 5 GAS CARB
  • 1979 - 1980 OLDSMOBILE CUTLASS SUPREME BROUGHAM V8 5.7 GAS CARB
  • 1988 OLDSMOBILE CUTLASS SUPREME CLASSIC V8 5 GAS CARB
  • 1988 OLDSMOBILE CUTLASS SUPREME CLASSIC BROUGHAM V8 5 GAS CARB
  • 1978 - 1980 PONTIAC GRAND AM V8 4.9 GAS CARB
  • 1978 - 1980 PONTIAC GRAND AM V8 5 GAS CARB
  • 1978 - 1980 PONTIAC GRAND PRIX V8 4.9 GAS CARB
  • 1978 - 1980, 1983 - 1987 PONTIAC GRAND PRIX V8 5 GAS CARB
  • 1980 - 1981 PONTIAC GRAND PRIX V8 4.3 GAS CARB
  • 1984 - 1987 PONTIAC GRAND PRIX LE V8 5 GAS CARB
  • 1978 - 1980 PONTIAC GRAND PRIX LJ V8 4.9 GAS CARB
  • 1978 - 1980, 1983 PONTIAC GRAND PRIX LJ V8 5 GAS CARB
  • 1980 - 1981 PONTIAC GRAND PRIX LJ V8 4.3 GAS CARB
  • 1978 - 1980 PONTIAC GRAND PRIX SJ V8 4.9 GAS CARB
  • 1978 - 1980 PONTIAC GRAND PRIX SJ V8 5 GAS CARB

  • Flowmaster 817457 - Flowmaster American Thunder Exhaust Systems - Cars

    Best suited to enthusiasts who want their cars to be heard while improving throttle response, power, and mileage. American Thunder Exhaust Systems are mandrel bent for optimum performance with specially selected mufflers. Made in the USA.

    Features
  • Premium Flowmaster quality
  • Axle-back, cat-back, or header-back
  • 16-gauge stainless or aluminized steel tubing
  • Moderate to aggressive exterior exhaust tone
  • Necessary hangers & hardware included for simple installation

    JEGS Easy Kits are designed by JEGS professionals to help you get all the performance parts you need.

  • Flowmaster 389-817457

    Inlet Size (in.)
    2.5
    Outlet Size (in.)
    2.5
    Inlet Size (in.)
    N/A
    Material
    Stainless Steel
    Exit Position
    Dual Rear
    Exhaust Type
    Dual
    Exit Style
    Straight
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