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817585 - Flowmaster American Thunder Header-back Exhaust System - default Image
817585 - Flowmaster American Thunder Header-back Exhaust System - additional Image
817585 - Flowmaster American Thunder Header-back Exhaust System - additional Image
1967-74 Mopar A-Body - American Thunder Exhaust System 817585YouTube Button

Flowmaster American Thunder Header-back Exhaust System

1967-1974 Mopar A-Body cars with V8 engine. (See applications below)

PART# 817585

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Fits 1967-1974 Mopar A-Body, such as Dodge Dart, Demon, Plymouth Barracuda, Duster, Valiant with V8 engine. Including convertibles.

Overview

For the person who is looking for a complete Header-back dual exhaust system with a performance sound. This system is mandrel bent for maximum performance and includes specially selected mufflers. American Thunder 2.5 in. systems generally deliver a moderate to aggressive interior and exterior tone and are suited to the enthusiast who wants their performance to be heard. The sound level will depend greatly on the engine and level of modification. 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.

Features:

  • Premium Quality
  • Improved Horsepower, Torque and Engine Efficiency
  • Delta Flow Technology
  • Super 50 Sound Level

Specs

2WD/4WD2WD
Automotive Item GradeHigh Performance Part
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code3
Exhaust SeriesAmerican Thunder
Exit PositionDual Rear Exit
Heat ShieldNo
Inlet Diameter (in)2.5
MaterialStainless Steel
Muffler Part NumberKit Only
Muffler Quantity2
Muffler SeriesSuper 40 Series
Outlet Diameter (in)2.5
Product TypeExhaust Systems / Kits
Single DualDual
Sound LevelModerate/Aggressive Sound
System TypeHeader-back System
Tip QuantityNot Included
Tubing Diameter (in)2.5
Part Number817585

Emissions

This part is legal for sale and use on Uncontrolled (Non-Emissions Controlled) Vehicles and Racing Use Only Vehicles.

The following vehicles are considered Uncontrolled (Non-Emissions Controlled) Vehicles:

  • 1965 and older U.S. manufactured California Certified vehicles
  • 1967 and older U.S. manufactured Federally Certified vehicles
  • 1967 and older Foreign manufactured vehicle

The following vehicles are considered Racing Use Only Vehicles:

  • Racing Use Only Vehicles are vehicles that are used exclusively for competition and that are not registered and that may never be used on the street

WARNING: It is against the law to install this part on an Emissions Controlled Vehicle

The following vehicles are considered Emissions Controlled Vehicles:

  • 1966 and newer U.S. manufactured California Certified vehicles
  • 1968 and newer U.S. manufactured Federally Certified vehicles
  • 1968 and newer Foreign manufactured vehicle

Tech Resources

Fits 1967-1974 Mopar A-Body, such as Dodge Dart, Demon, Plymouth Barracuda, Duster, Valiant with V8 engine. Including convertibles.

Applications

Reviews

    *Free Shipping & Handling only offered to the contiguous US on orders over $100, excludes clearance parts and oversized packages.

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

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