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Flowmaster American Thunder Cat-Back Exhaust System 17328

Flowmaster American Thunder Cat-Back Exhaust System 17328
Flowmaster American Thunder Cat-Back Exhaust System 17328Flowmaster American Thunder Cat-Back Exhaust System 17328
$956.99 ea
NEWBackordered until 04/04/2024
Model: 3259662
Select a Vehicle or refer to the Vehicle Fitment Tab below to verify that this part fits your vehicle.
OVERSIZE 3
For the person who wants a subtle custom appearance with all the benefits that a Flowmaster Cat-back exhaust system provides. This American Thunder system for the 2001-2006 (2007 Classic) Chevrolet Silverado, GMC Sierra 2500HD/3500HD with 6.0L or 8.1L engine with dual inlet muffler, delivers a moderate interior tone with a deep powerful exterior tone and is suited to the enthusiast who wants their performance to be heard. The system attaches to the back of the catalytic converter with a dual inlet 50 Series Big Block muffler for a deep powerful sound without being obnoxious. Includes a large custom formed aluminum heat shield with stainless clamps and easily attaches directly to the muffler body. The custom bent 3.50-inch aluminized steel tailpipe uses the factory hanger locations for an easy installation and exits out behind the right side rear wheel which is ideal for towing. The tailpipe is finished off with a large 4.00-inch polished 304 stainless steel tip embossed with the Flowmaster logo. Like all Flowmaster systems, the benefits include improved throttle response, power and mileage. Designed for an easy fit, these systems include all necessary parts, hardware and easy to follow instructions for a trouble free installation. Covered by our 3-year Limited Warranty. Check out system #817328 if you prefer a Stainless Steel exhaust system that is covered with a Lifetime Limited Warranty.
Features:
  • Includes an Aluminum Heat Shield for Rapid Heat Dissipation
  • Includes a Large 4.00-inch Polished 304 Stainless Steel Tip
  • Includes Hangers and Hardware for an Easy Installation
  • Mandrel-bent 16-gauge Aluminized Steel Tubing
  • Dyno-tuned for Maximum Performance
  • Stainless Steel Heat Shield Clamps
  • Uses the Factory Hanger Locations
  • Aggressive Exterior Exhaust Tone
  • Easy Installation
Fits 2001-2006 (2007 Classic) Chevrolet Silverado and GMC Sierra 2500 3/4 Ton and 1 Ton HD truck with 6.0L or 8.1L engine with dual inlet muffler, fits 2/4 wheel drive models with extended cab or crew cab.
Installation Notes:
Fits 2001-2006 (2007 Classic) Chevrolet Silverado and GMC Sierra 2500 3/4 Ton and 1 Ton HD truck with 6.0L or 8.1L engine with dual inlet muffler, fits 2/4 wheel drive models with extended cab or crew cab.

About Flowmaster

Manufacturer of performance exhaust systems, mufflers, performance air intakes, turbo boost modules, catalytic converters, race mufflers, headers and numerous exhaust accessories for late model cars, trucks, off-road, Jeeps, SUV’s, classic muscle cars, powersports vehicles and more. Flowmaster® gives you lots of exhaust choices with 12 designs of chambered mufflers, 3 styles of our exclusive “laminar-flow” mufflers and a new line of FlowFX “straight-through” performance mufflers, along with 5 sound categories of exhaust systems, giving you the customer, the power to custom tailor the sound of your vehicle whether you prefer mild, moderate or aggressive tones and sound levels. Since 1983, Flowmaster is the company you can trust, and has led the industry in offering only the best products you can buy for your vehicles.

Downloads:

Download Name File Size
fm_warranty_general.pdf88.58KB
17328_instructions.pdf4.47MB

Vehicle Fitment:

The Vehicle Fitment Guide is to be used as a general reference. The data has been provided by our suppliers and manufacturers and may contain errors or incorrect data. Always refer to a professional to verify correct fitment for your vehicle.
Make Model Submodel Years Engine Fitment Notes
Chevrolet Silverado 2500 HD Classic LS 2007 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD Classic LT 2007 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD Classic WT 2007 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD Base 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD Base 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD Base 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD Base 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD Base 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD LS 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD LS 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD LS 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD LS 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD LS 2005 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD LS 2006 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD LT 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD LT 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD LT 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 2500 HD LT 2004 8.1L / 496 / V8
6.0L / 364 / V8
Chevrolet Silverado 2500 HD LT 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD LT 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD WT 2003 6.0L / 364 / V8
Chevrolet Silverado 2500 HD WT 2004 6.0L / 364 / V8
8.1L / 496 / V8
Chevrolet Silverado 2500 HD WT 2005 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD WT 2006 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 2500 HD 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 Classic LS 2007 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 Classic LT 2007 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 Classic WT 2007 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 Base 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 Base 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 Base 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 Base 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 Base 2005 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 LS 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LS 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LS 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LS 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LS 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 LS 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 LT 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LT 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LT 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LT 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 LT 2005 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 LT 2006 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
Chevrolet Silverado 3500 WT 2004 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
Chevrolet Silverado 3500 WT 2006 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD Classic SLE 2007 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD Classic SLT 2007 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD Classic SL 2007 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD Classic WT 2007 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD Base 2002 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD Base 2003 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD Base 2004 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD Base 2005 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD SLE 2001 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD SLE 2002 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD SLE 2003 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD SLE 2004 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD SLE 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD SLE 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD SLT 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD SLT 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD SL 2001 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD SL 2002 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD SL 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD WT 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD WT 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 2500 HD 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 2500 HD 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 Classic SLE 2007 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 Classic SLT 2007 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 Classic SL 2007 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 Classic WT 2007 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 Base 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 Base 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 Base 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 Base 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 SLE 2001 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLE 2002 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLE 2003 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLE 2004 6.0L / 364 / V8
8.1L / 496 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLE 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 SLE 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 SLT 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLT 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLT 2003 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLT 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SLT 2005 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 SLT 2006 8.1L / 496 / V8
6.0L / 364 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 SL 2001 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SL 2002 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 SL 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 WT 2004 8.1L / 496 / V8
6.0L / 364 / V8
Extended Cab and Crew Cab onlyFactory Dual Inlet Muffler Only
GMC Sierra 3500 WT 2005 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY
GMC Sierra 3500 WT 2006 6.0L / 364 / V8
8.1L / 496 / V8
EXTENDED CAB AND CREW CAB ONLY. FACTORY DUAL INLET MUFFLER ONLY

Specifications:

2WD/4WD 2WD/4WD
California Proposition 65 Chemical Name Chromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 Required Yes
Emission Code 5
Exhaust Series American Thunder
Exit Position Single Side Exit
Heat Shield No
Inlet Diameter (in) 3
Inlet Position Dual
Material Aluminized Steel
Muffler Part Number Kit Only
Muffler Quantity 1
Muffler Series 50 Series Big Block
Outlet Diameter (in) 3.5
Part Type Exhaust System Kit
Product Type Exhaust System
Proposition 65 www.P65Warnings.ca.gov
Single Dual Single
Sound Level Aggressive
System Type Cat-back
Tip Diameter (in) 4
Tip Quantity 1
Tubing Diameter (in) 3.5
Warranty Time 36 Months

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Flowmaster American Thunder Cat-Back Exhaust System 17328:
Classic Truck 2024