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American Thunder Header-Back Exhaust System 1964-1967 GM A-Body V8
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FLOWMASTERPART NUMBER: 389-817412

American Thunder Header-Back Exhaust System 1964-1967 GM A-Body V8

$94995
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GM A-Body
American Thunder Header-Back Exhaust System
  • 1964-1967 GM A-Body V8
  • 2.5" Tubing
  • Tips Not Included
  • Dual Side Exit
  • Super 40 Series Muffler
  • 409S Stainless Steel

    Flowmaster 817412 Features:

    This American Thunder exhaust system comes as a complete true dual Crossmember-Back exhaust for your 1964-1967 GM A-body with a V8 engine. These dual exhaust systems feature 2.50-inch mandrel-bent stainless steel tubing for maximum performance, includes a built-in H-pipe/balance tube flowing into a pair of large case Super 40 mufflers that deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The 2.50-inch tailpipes exit at the rear corners of the car and angle down under the rear bumper for a strong muscular look. The system includes all hangers and necessary hardware for installation. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage and is covered by our Lifetime Limited Warranty.

    • H-pipe Crossover for Maximum Power and Deep Tone
    • Super 40 Series Mufflers for Deep Powerful Sound
    • Mandrel-bent 16-gauge Stainless Steel Tubing
    • Includes Hangers and Hardware for Installation
    • Moderate to Aggressive Exterior Exhaust Tone
    • Crossmember-Back True Dual Exhaust System
  • Part TypeExhaust System
    BrandFLOWMASTER
    Package Height18.0
    Package Width20.0
    Package Length60.0
    Weight75.45 PG
    Tailpipe Diameter (In.)2.5
    Muffler Inlet Inside Diameter2.50 in.
    Hangers IncludedYes
    Main Piping Diameter2.50 in.
    Tail Pipe QuantityDual
    Inlet TypeWeld-On
    Catalytic Converter Quantity0
    Exit LocationRear
    Inlet QuantityTwo
    Muffler Body Length13.50 in.
    Sound LevelAggressive / Moderate
    Muffler MaterialStainless steel
    Muffler Body Material409 Stainless Steel
    Gasket Or Seal IncludedNo
    Pipe ColorSilver
    System FinishNatural
    Muffler Quantity2
    Muffler Inlet Outside Diameter2.63 in.
    Exit QuantityTwo
    Muffler Flanged OutletNo
    Tip QuantityNone
    Exhaust TypeDual
    Catalytic Converter IncludedNo
    Heat Shield IncludedNo
    Part CategoryPerformance Parts
    Hardware IncludedYes
    Exhaust Tip Quantity0
    Valve IncludedNo
    Muffler TypeChambered
    Pipe Material409 Stainless Steel
    Muffler Body Width10 in.
    Tail Pipe Tapered OutletNo
    Muffler Body ShapeOval
    Mounting Bracket IncludedYes
    Muffler Outlet Quantity1
    Muffler FinishBlack High-Temperature Paint Finish
    Inlet Diameter2.50 in.
    Clamps IncludedYes
    Muffler StyleChambered
    FinishNatural
    Exit StyleDual Out Rear
    Muffler Body Height5 in.
    Tip IncludedNo
    Clamping TypeFlat Band
    Muffler Flanged InletNo
    Spring Bolt Kit IncludedNo
    Muffler SeriesSuper 40 Series
    QuantitySold as a kit
    Muffler IncludedYes
    Exhaust Tip ConnectionClamp-On
    System StyleHeader-back
    Tail Pipe Outlet Outside Diameter2.50 in.
    Muffler ConfigurationSingle inlet/Single outlet
    System MaterialStainless steel
    Valve TypeNot Applicable
    Intermediate Pipe Diameter2.5 in (63.5 mm)
    Part FitmentSemi Universal
    Vendor Part Number817412
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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    Some parts are not legal for use in California or other states with similar laws / regulations
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