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Flowmaster 17129 American Thunder Cat-Back Exhaust

Part No. 17129

This is a direct fit, vehicle specific part.
Please verify this fits your vehicle.
vehicle fitment information
Attribute Size / Style
2Wd/4Wd 2WD
Aap Agricultural Equipment N
Aap Application Specific Y
Aap Car/Light Truck Y
Aap Engine Specific Y
Aap Freight Class 70
Aap Heavy Duty Truck N
Aap High Performance Y
Aap Industrial / Off-Highway Equipment N
Aap Marine M N
Aap Medium Duty Truck N
Aap Motorcycle N
Aap Non-Vehicle Specific N
Aap Personal Watercraft N
Aap Small Engine M N
Aap Snowmobile N
Aap Transmission Specific N
Body Type Coupe
Exhaust Series American Thunder
Exit Position Dual Side Exit
Heat Shield None
Inlet Diameter (Inches) 2.50
Material Aluminized Steel
Muffler Part Number 942546
Muffler Quantity 2
Muffler Series Super 44 Series
Number Of Doors 2
Outlet Diameter (Inches) 2.50
Single Dual Dual
Sound Level Moderate/Aggressive Sound
System Type Header-back System
Tip Quantity None
Tubing Diameter (Inches) 2.50
your price

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  • Header-back System - Dual Side Exit - American Thunder - Aggressive Sound


    by PowerReviews
    Flowmaster 17129 American Thunder Cat-Back Exhaust

    (based on 2 reviews)

    Ratings Distribution

    • 5 Stars



    • 4 Stars



    • 3 Stars



    • 2 Stars



    • 1 Stars



    Reviewed by 2 customers

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    Displaying reviews 1-2

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    Holy Horsepower!

    By kennyz

    from Undisclosed

    Comments about Flowmaster 17129 American Thunder Cat-Back Exhaust:

    This is the best exhaust system for the money, bar none.
    Great fit, appearance, and craftsmanship. I recommend this highly.

    (1 of 1 customers found this review helpful)


    service excellece

    By Pontiac

    from Wyoming

    Comments about Flowmaster 17129 American Thunder Cat-Back Exhaust:

    This was the best price and the fastest shipping.The Flowmaster exhaust is a great fit and a powerfull sound behind the Pontiac 400. Thank you for the excellent service. Tim

    Displaying reviews 1-2

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    • Convertible models require an aftermarket X-brace or 3/8 shims for clearance
    • Dual; Factory Location Exit; Incl. 2.5 in. Tubing From Trans X - Member Back; H-Pipe/Hardware/Super 44(TM) Delta Flow Mufflers;
    1967-1968ChevroletCamaro3.8L / 230 C.I.D.-6.5L / 396 C.I.D.GAS
    1968-1968ChevroletCamaroZ284.9L / 302 C.I.D.-4.9L / 302 C.I.D.GAS
    1967-1968PontiacFirebird3.8L / 230 C.I.D.-6.6L / 400 C.I.D.GAS
    1968-1968PontiacFirebird3505.7L / 350 C.I.D.-5.7L / 350 C.I.D.GAS
    1967-1968PontiacFirebird4006.6L / 400 C.I.D.-6.6L / 400 C.I.D.GAS
    1967-1967PontiacFirebirdHO6.6L / 400 C.I.D.-6.6L / 400 C.I.D.GAS
    1967-1968PontiacFirebirdSprint3.8L / 230 C.I.D.-4.1L / 250 C.I.D.GAS
    • Back In Stock Notification

      Provide us with your email address and we'll let you know the moment this Flowmaster American Thunder Header Back 17129 becomes available again.

    • Why don't we show the price?

      When a manufacturer implements a Minimum Advertised Price (MAP) policy, they create limits on the list price that retailers are allowed to advertise their products for. In line with our efforts to continually provide the lowest possible price, we've made it easier for you to inquire about our Exclusive Pricing on these MAP items.

    • Shipping Policy

      Free Ground Shipping
      Free FedEx ground shipping on all orders over $100. Free shipping to 48 Continental United States only. Orders under $100 will incur a FedEx ground shipping charge of $9.95.

      $9.95 Per Wheel/$25 Per Tire
      Each wheel will incur a $9.95 per wheel fee and each tire will incur a $25 per tire fee up to $129. You will be charged a maximum of $129 regardless of how many wheels and/or tires you purchase.

      $129 Truck Freight
      Oversized parts will incur a $129 truck freight charge that FedEx cannot provide standard ground shipping on.