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Browse Cat-Back & Turbo-Back Exhaust Systems

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Flowmaster 17104 American Thunder Cat-Back Exhaust

American Thunder Header Back Exhaust System

  • Convertible models require an aftermarket X-brace or 3/8 shims for clearance
  • Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
  • Does Not Fit Convertibles w/o X-Brace Modification~ Call Tech Support Line For Assistance~ Convertibles Require Aftermarket X-Brace Or 3/8 in. Shims For Clearance
  • Single; Dual Rear Exit; Incl. 2.5 in. Tubing From Trans X - Member Back; H-Pipe/Hardware/80 Series(TM) Crossflow Muffler;
This is a direct fit, vehicle specific part.
your price

in stock
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 Convertible
Exhaust Series American Thunder
Exit Position Dual Rear Exit
Heat Shield Special
Inlet Diameter (Inches) 2.50
Material Aluminized Steel
Muffler Part Number 42585
Muffler Quantity 1
Muffler Series 80 Series Crossflow
Number Of Doors 2
Outlet Diameter (Inches) 2.50
Single Dual Dual
Sound Level Moderate Sound
System Type Header-back System
Tip Quantity None
Tubing Diameter (Inches) 2.50
Year Make Model Submodel Engine
1967-1974 Chevrolet Camaro 3.8L / 230 C.I.D.-7.0L / 427 C.I.D.
1973-1973 Chevrolet Camaro LT 5.0L / 307 C.I.D.-5.7L / 350 C.I.D.
1969-1969 Chevrolet Camaro SS 6.5L / 396 C.I.D.-6.5L / 396 C.I.D.
1968-1972 Chevrolet Camaro Z28 4.9L / 302 C.I.D.-6.6L / 402 C.I.D.
1968-1968 Chevrolet Chevy II Nova 2.5L / 153 C.I.D.-6.5L / 396 C.I.D.
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  • 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.