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American Thunder Header-Back Exhaust System 1964-1966 Ford Mustang V8
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FLOWMASTERPART NUMBER: 389-17273

American Thunder Header-Back Exhaust System 1964-1966 Ford Mustang V8

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Ford Mustang V8
American Thunder Header-Back Exhaust System
  • 1964-1966 Ford Mustang V8 Except Convertibles
  • 2.5" Tubing
  • 2.5" Polished SS Tips
  • Dual Rear Exit
  • 40 Series Delta Flow Muffler
  • Aluminized Steel

    FLOWMASTER MUFFLERS 17273 Features:

    This American Thunder® crossmember-back exhaust system is custom designed for the 1964-1966 Ford Mustang and is perfect for the person looking for a complete 2.50-inch dual exhaust system with a moderately aggressive exterior tone, and a moderate interior sound. With easy fit in mind, these 16-gauge aluminized steel systems feature all mandrel-bent tubing, an H-pipe to equalize the exhaust pressures and a pair of specially selected 40 Series Delta Flow performance mufflers for a deep powerful sound. The mandrel-bent 2.50-inch tailpipes tuck up out of the way for maximum clearance and the last few feet is all polished stainless steel for a show car look. Like all Flowmaster® systems, benefits include improved throttle response, power, and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation. The system is covered by our 3-year Limited Warranty. Connects to existing header collector reducer cones or manifold downpipes(not included.) If you prefer a full stainless steel system with a Lifetime Limited Warranty, check out exhaust system #817273. Notes: For non GT and hardtop models.
    • Includes Hangers and Hardware for an Easy Installation
    • Mandrel-bent 16-gauge Aluminized Steel Tubing
    • Extra Long Polished Stainless Steel Tips
    • 40 Series Delta Flow Performance Mufflers
    • Over 35+years of Flowmaster Quality
    • Deep Powerful Exhaust Tone
    • H-pipe Crossover Tube
    • Crossmember-back System
    • Experience An Exhaust System Tuned for Performance and Tone

      If you need an exhaust system that has been dyno tuned to produce maximum performance, look no further than Flowmaster's American Thunder Exhaust Systems. This line, designed for passenger cars, produces a range of systems that offer moderate to aggressive exhaust notes. Available in axle, cat, and header-back configurations, Flowmaster has you covered. To ensure durability and ease of installation, these kits are made from 16-gauge mandrel bent tubing and includes the necessary hangers and hardware.

    Part TypeExhaust System
    Product LineFlowmaster American Thunder Exhaust Systems for Cars
    BrandFLOWMASTER
    Package Height15.0
    Package Width16.5
    Package Length52.0
    Weight66.45 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
    Tip CutSlant
    Exhaust Tip Material304 Stainless Steel
    Catalytic Converter Quantity0
    Exit LocationSplit Rear
    Inlet QuantityTwo
    Muffler Body Length13 in.
    Sound LevelAggressive / Moderate
    Muffler Body MaterialAluminized Steel
    Exhaust Tip CutAngled
    Gasket Or Seal IncludedNo
    Exhaust Tip IntercooledNo
    Pipe ColorSilver
    System FinishAluminized
    Muffler Quantity2
    Muffler Inlet Outside Diameter2.63 in.
    Exit QuantityTwo
    Tip MaterialStainless steel
    Muffler Flanged OutletNo
    Tip Quantity2
    Exhaust Tip ResonatedNo
    Exhaust TypeDual
    Catalytic Converter IncludedNo
    Heat Shield IncludedNo
    Part CategoryPerformance Parts
    Hardware IncludedYes
    Exhaust Tip Quantity2
    Exhaust Tip FinishPolished
    Exhaust Tip EdgeSlash Cut
    Valve IncludedNo
    Muffler TypeChambered
    Pipe MaterialAluminized Steel
    Muffler Body Width9.75 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
    Tip Outlet Size2.5 in (63.5 mm)
    FinishAluminized
    Exit StyleDual Out Rear
    Muffler Body Height4 in.
    Tip IncludedYes
    Clamping TypeU-Bolt
    Muffler Flanged InletNo
    Spring Bolt Kit IncludedNo
    Muffler Series40 Series Delta Flow
    QuantitySold as a kit
    Muffler IncludedYes
    Exhaust Tip ConnectionWelded
    System StyleHeader-back
    Tail Pipe Outlet Outside Diameter2.50 in.
    Muffler ConfigurationSingle inlet/Single outlet
    System MaterialSteel
    Valve TypeNot Applicable
    Tip Edge StyleNon-rolled edge
    Tip ShapeRound
    Intermediate Pipe Diameter2.5 in (63.5 mm)
    Exhaust Tip Diameter2.50 in.
    Part FitmentDirect Fit
    Vendor Part Number17273
    Package Qty1
    Package TypeEA
    No Questions
    No Reviews

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