Free shipping on orders over $100 Details

Flowmaster American Thunder Header-back Exhaust System

1967-1968 Camaro and Firebird with V8 engine. 2.50 inch Aluminized Steel

PART# 17129

Be the first to write a review
$564.00   Suggested Retail
$506.95   Your Price
Free Shipping
In Stock  
Add to Wish List

Starting at $45 a month with Learn More
Delta Flow
Aggressive to moderate sound


This American Thunder system is specially designed for 1967-1968 Camaro and Firebirds and is perfect for the person looking for a complete header-back dual exhaust system. With an easy-fit in mind, this exhaust system is manufactured as a true dual exhaust using 2.50-inch aluminized steel tubing throughout, includes a built-in H-pipe design and delivers improved throttle response, power with a deep muscle car sound. The mandrel-bent tubing flows into a pair of Super 44 mufflers with 2.50-inch tailpipes exiting in the factory location behind the rear wheels pointing down just below the quarter panel. The system delivers a moderate to aggressive interior and exterior tone that's suited for the enthusiast who wants their performance to be heard. Designed for an easy fit, these systems include all necessary parts, hardware, and instructions. If you prefer Stainless steel construction, check out optional system# 817129. Notes: Fits convertibles by spacing down the factory convertible body brace by approximately .375-inch, or you can replace the factory body brace with a Hotchkis Performance body brace part #1404.


  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Moderate to Aggressive Exterior Exhaust Tone
  • Complete Headers-back Exhaust System
  • Super 44 Series Performance Mufflers
  • Tailpipes Exit in the Factory Location
  • Includes H-pipe Assembly
  • Flowmaster Quality


Emission Code3
Exhaust SeriesAmerican Thunder
Exit PositionDual Side Exit
Heat ShieldNo
Inlet Diameter (in)2.5
MaterialAluminized Steel
Muffler Part Number942546
Muffler Quantity2
Muffler SeriesSuper 44 Series
Outlet Diameter (in)2.5
Product TypeExhaust System
Single DualDual
Sound LevelAggressive / Moderate
System TypeHeader-back
Tip QuantityNot Included
Tubing Diameter (in)2.5
California Proposition 65 RequiredNo
Part Number17129



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 1967-1968 Chevrolet Camaro and Pontiac Firebird with V8 engine. Does not fit convertibles without modifications or replacement to the factory X-brace. See notes in description.


We Suggest
    Also Bought

        *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.

         X  Sloppy Mechanics Sweepstakes
         X  Sloppy Mechanics Sweepstakes