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817202 - Header-back System 409S - Dual Side Exit - American Thunder - Aggressive Sound - default Image
817202 - Header-back System 409S - Dual Side Exit - American Thunder - Aggressive Sound - additional Image
817202 - Header-back System 409S - Dual Side Exit - American Thunder - Aggressive Sound - additional Image

Header-back System 409S - Dual Side Exit - American Thunder - Aggressive Sound

American Thunder Kit

PART# 817202

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Fits 1964 to 1967 GM A-Body with a V8 engine

Overview

For the person who is looking for a complete Header-back dual exhaust system with an aggressive tone. This system is mandrel bent for maximum performance and includes specially selected mufflers. American Thunder 3 in. systems generally deliver an 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:

  • Lifetime limited warranty
  • Patented Delta Flow technology
  • Dyno tuned for maximum performance
  • Stainless Steel Construction

Specs

2WD/4WD2WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Emission Code3
Exhaust SeriesAmerican Thunder
Exit PositionDual Side Exit
Heat ShieldNo
Inlet Diameter (in)3
MaterialStainless Steel
Muffler Quantity2
Muffler SeriesSuper 40 Series
Outlet Diameter (in)3
Product TypeExhaust Systems / Kits
Sound LevelAggressive Sound
System TypeHeader-back System
Tip Diameter (in)3
Tip Quantity2
Tubing Diameter (in)3
Part Number817202

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 1964 to 1967 GM A-Body with a V8 engine

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.