Description

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

Specifications

2WD/4WD2WD/4WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 Chemical NameNickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip Quantity1
Exit PositionSingle Side Exit
Exit StyleSingle Side Exit
FinishAluminized
Heat ShieldNo
Inlet Diameter3
Inlet PositionDual
Main Piping Diameter3.50
Main Piping Diameter3-1/2
MaterialAluminized Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series50 Series Big Block
Outlet Diameter3.5
Product TypeExhaust System
Sale CategoryExhaust
Single DualSingle
Sound LevelAggressive
System TypeCat-back
Tip Diameter4
Tip Quantity1
Tubing Diameter3.5
TypeCat-Back

Compatibility

  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LS 6.0
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic WT 8.1
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic WT 6.0
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LT 8.1
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LS 8.1
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LT 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LT 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic WT 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic WT 8.1
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LT 8.1
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LS 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LS 8.1
  • 2001 - 2004 Chevrolet Silverado 2500 HD Base 6.0
  • 2001 - 2004 Chevrolet Silverado 2500 HD LS 6.0
  • 2001 - 2004 Chevrolet Silverado 2500 HD Base 8.1
  • 2001 - 2004 Chevrolet Silverado 2500 HD LS 8.1
  • 2001 - 2003 Chevrolet Silverado 2500 HD LT 6.0
  • 2001 - 2003 Chevrolet Silverado 2500 HD LT 8.1
  • 2003 - 2004 Chevrolet Silverado 2500 HD WT 6.0
  • 2004 - 2004 Chevrolet Silverado 2500 HD LT 6.0
  • 2004 - 2004 Chevrolet Silverado 2500 HD WT 8.1
  • 2004 - 2004 Chevrolet Silverado 2500 HD LT 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD LS 6.0
  • 2005 - 2006 Chevrolet Silverado 2500 HD WT 6.0
  • 2005 - 2006 Chevrolet Silverado 2500 HD LS 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD WT 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD LT 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD LT 6.0
  • 2005 - 2005 Chevrolet Silverado 2500 HD Base 8.1
  • 2005 - 2005 Chevrolet Silverado 2500 HD Base 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 Base 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 LS 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 LT 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 LT 8.1
  • 2001 - 2004 Chevrolet Silverado 3500 LS 8.1
  • 2001 - 2004 Chevrolet Silverado 3500 Base 8.1
  • 2004 - 2004 Chevrolet Silverado 3500 WT 8.1
  • 2004 - 2004 Chevrolet Silverado 3500 WT 6.0
  • 2005 - 2006 Chevrolet Silverado 3500 LS 8.1
  • 2005 - 2006 Chevrolet Silverado 3500 LT 6.0
  • 2005 - 2006 Chevrolet Silverado 3500 LS 6.0
  • 2005 - 2006 Chevrolet Silverado 3500 LT 8.1
  • 2005 - 2005 Chevrolet Silverado 3500 Base 6.0
  • 2005 - 2005 Chevrolet Silverado 3500 Base 8.1
  • 2006 - 2006 Chevrolet Silverado 3500 WT 6.0
  • 2006 - 2006 Chevrolet Silverado 3500 WT 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic WT 6.0
  • 2007 - 2007 GMC Sierra 2500 HD Classic WT 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLT 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SL 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLE 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLT 6.0
  • 2007 - 2007 GMC Sierra 2500 HD Classic SL 6.0
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLE 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic SLE 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic WT 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic WT 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SL 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SLT 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SLE 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SL 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic SLT 6.0
  • 2001 - 2004 GMC Sierra 2500 HD SLE 8.1
  • 2001 - 2004 GMC Sierra 2500 HD SLE 6.0
  • 2001 - 2002 GMC Sierra 2500 HD SL 8.1
  • 2001 - 2002 GMC Sierra 2500 HD SL 6.0
  • 2002 - 2004 GMC Sierra 2500 HD Base 8.1
  • 2002 - 2004 GMC Sierra 2500 HD Base 6.0
  • 2003 - 2004 GMC Sierra 2500 HD WT 6.0
  • 2003 - 2004 GMC Sierra 2500 HD SLT 8.1
  • 2003 - 2004 GMC Sierra 2500 HD SLT 6.0
  • 2003 - 2004 GMC Sierra 2500 HD WT 8.1
  • 2005 - 2006 GMC Sierra 2500 HD WT 8.1
  • 2005 - 2006 GMC Sierra 2500 HD SLT 8.1
  • 2005 - 2006 GMC Sierra 2500 HD SLE 8.1
  • 2005 - 2006 GMC Sierra 2500 HD SLT 6.0
  • 2005 - 2006 GMC Sierra 2500 HD WT 6.0
  • 2005 - 2006 GMC Sierra 2500 HD SLE 6.0
  • 2005 - 2005 GMC Sierra 2500 HD Base 6.0
  • 2005 - 2005 GMC Sierra 2500 HD Base 8.1
  • 2006 - 2006 GMC Sierra 2500 HD SL 8.1
  • 2006 - 2006 GMC Sierra 2500 HD SL 6.0
  • 2001 - 2004 GMC Sierra 3500 SLE 8.1
  • 2001 - 2004 GMC Sierra 3500 SLT 6.0
  • 2001 - 2004 GMC Sierra 3500 SLE 6.0
  • 2001 - 2004 GMC Sierra 3500 SLT 8.1
  • 2001 - 2002 GMC Sierra 3500 SL 6.0
  • 2001 - 2002 GMC Sierra 3500 SL 8.1
  • 2002 - 2004 GMC Sierra 3500 Base 6.0
  • 2002 - 2004 GMC Sierra 3500 Base 8.1
  • 2004 - 2004 GMC Sierra 3500 WT 6.0
  • 2004 - 2004 GMC Sierra 3500 WT 8.1
  • 2005 - 2006 GMC Sierra 3500 SLT 6.0
  • 2005 - 2006 GMC Sierra 3500 SLE 8.1
  • 2005 - 2006 GMC Sierra 3500 WT 8.1
  • 2005 - 2006 GMC Sierra 3500 SLE 6.0
  • 2005 - 2006 GMC Sierra 3500 WT 6.0
  • 2005 - 2006 GMC Sierra 3500 SLT 8.1
  • 2005 - 2005 GMC Sierra 3500 Base 8.1
  • 2005 - 2005 GMC Sierra 3500 Base 6.0
  • 2006 - 2006 GMC Sierra 3500 SL 8.1
  • 2006 - 2006 GMC Sierra 3500 SL 6.0

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
2WD/4WD2WD/4WD
BrandFlowmaster
California Proposition 65 Chemical NameChromium (hexavalent compounds)
California Proposition 65 Chemical NameNickel (Metallic)
California Proposition 65 RequiredYes
Emission Code5
Exhaust SeriesAmerican Thunder
Exhaust Tip Quantity1
Exit PositionSingle Side Exit
Exit StyleSingle Side Exit
FinishAluminized
Heat ShieldNo
Inlet Diameter3
Inlet PositionDual
Main Piping Diameter3.50
Main Piping Diameter3-1/2
MaterialAluminized Steel
Muffler Part NumberKit Only
Muffler Quantity1
Muffler Series50 Series Big Block
Outlet Diameter3.5
Product TypeExhaust System
Sale CategoryExhaust
Single DualSingle
Sound LevelAggressive
System TypeCat-back
Tip Diameter4
Tip Quantity1
Tubing Diameter3.5
TypeCat-Back
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LS 6.0
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic WT 8.1
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic WT 6.0
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LT 8.1
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LS 8.1
  • 2007 - 2007 Chevrolet Silverado 2500 HD Classic LT 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LT 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic WT 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic WT 8.1
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LT 8.1
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LS 6.0
  • 2007 - 2007 Chevrolet Silverado 3500 Classic LS 8.1
  • 2001 - 2004 Chevrolet Silverado 2500 HD Base 6.0
  • 2001 - 2004 Chevrolet Silverado 2500 HD LS 6.0
  • 2001 - 2004 Chevrolet Silverado 2500 HD Base 8.1
  • 2001 - 2004 Chevrolet Silverado 2500 HD LS 8.1
  • 2001 - 2003 Chevrolet Silverado 2500 HD LT 6.0
  • 2001 - 2003 Chevrolet Silverado 2500 HD LT 8.1
  • 2003 - 2004 Chevrolet Silverado 2500 HD WT 6.0
  • 2004 - 2004 Chevrolet Silverado 2500 HD LT 6.0
  • 2004 - 2004 Chevrolet Silverado 2500 HD WT 8.1
  • 2004 - 2004 Chevrolet Silverado 2500 HD LT 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD LS 6.0
  • 2005 - 2006 Chevrolet Silverado 2500 HD WT 6.0
  • 2005 - 2006 Chevrolet Silverado 2500 HD LS 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD WT 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD LT 8.1
  • 2005 - 2006 Chevrolet Silverado 2500 HD LT 6.0
  • 2005 - 2005 Chevrolet Silverado 2500 HD Base 8.1
  • 2005 - 2005 Chevrolet Silverado 2500 HD Base 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 Base 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 LS 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 LT 6.0
  • 2001 - 2004 Chevrolet Silverado 3500 LT 8.1
  • 2001 - 2004 Chevrolet Silverado 3500 LS 8.1
  • 2001 - 2004 Chevrolet Silverado 3500 Base 8.1
  • 2004 - 2004 Chevrolet Silverado 3500 WT 8.1
  • 2004 - 2004 Chevrolet Silverado 3500 WT 6.0
  • 2005 - 2006 Chevrolet Silverado 3500 LS 8.1
  • 2005 - 2006 Chevrolet Silverado 3500 LT 6.0
  • 2005 - 2006 Chevrolet Silverado 3500 LS 6.0
  • 2005 - 2006 Chevrolet Silverado 3500 LT 8.1
  • 2005 - 2005 Chevrolet Silverado 3500 Base 6.0
  • 2005 - 2005 Chevrolet Silverado 3500 Base 8.1
  • 2006 - 2006 Chevrolet Silverado 3500 WT 6.0
  • 2006 - 2006 Chevrolet Silverado 3500 WT 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic WT 6.0
  • 2007 - 2007 GMC Sierra 2500 HD Classic WT 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLT 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SL 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLE 8.1
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLT 6.0
  • 2007 - 2007 GMC Sierra 2500 HD Classic SL 6.0
  • 2007 - 2007 GMC Sierra 2500 HD Classic SLE 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic SLE 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic WT 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic WT 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SL 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SLT 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SLE 8.1
  • 2007 - 2007 GMC Sierra 3500 Classic SL 6.0
  • 2007 - 2007 GMC Sierra 3500 Classic SLT 6.0
  • 2001 - 2004 GMC Sierra 2500 HD SLE 8.1
  • 2001 - 2004 GMC Sierra 2500 HD SLE 6.0
  • 2001 - 2002 GMC Sierra 2500 HD SL 8.1
  • 2001 - 2002 GMC Sierra 2500 HD SL 6.0
  • 2002 - 2004 GMC Sierra 2500 HD Base 8.1
  • 2002 - 2004 GMC Sierra 2500 HD Base 6.0
  • 2003 - 2004 GMC Sierra 2500 HD WT 6.0
  • 2003 - 2004 GMC Sierra 2500 HD SLT 8.1
  • 2003 - 2004 GMC Sierra 2500 HD SLT 6.0
  • 2003 - 2004 GMC Sierra 2500 HD WT 8.1
  • 2005 - 2006 GMC Sierra 2500 HD WT 8.1
  • 2005 - 2006 GMC Sierra 2500 HD SLT 8.1
  • 2005 - 2006 GMC Sierra 2500 HD SLE 8.1
  • 2005 - 2006 GMC Sierra 2500 HD SLT 6.0
  • 2005 - 2006 GMC Sierra 2500 HD WT 6.0
  • 2005 - 2006 GMC Sierra 2500 HD SLE 6.0
  • 2005 - 2005 GMC Sierra 2500 HD Base 6.0
  • 2005 - 2005 GMC Sierra 2500 HD Base 8.1
  • 2006 - 2006 GMC Sierra 2500 HD SL 8.1
  • 2006 - 2006 GMC Sierra 2500 HD SL 6.0
  • 2001 - 2004 GMC Sierra 3500 SLE 8.1
  • 2001 - 2004 GMC Sierra 3500 SLT 6.0
  • 2001 - 2004 GMC Sierra 3500 SLE 6.0
  • 2001 - 2004 GMC Sierra 3500 SLT 8.1
  • 2001 - 2002 GMC Sierra 3500 SL 6.0
  • 2001 - 2002 GMC Sierra 3500 SL 8.1
  • 2002 - 2004 GMC Sierra 3500 Base 6.0
  • 2002 - 2004 GMC Sierra 3500 Base 8.1
  • 2004 - 2004 GMC Sierra 3500 WT 6.0
  • 2004 - 2004 GMC Sierra 3500 WT 8.1
  • 2005 - 2006 GMC Sierra 3500 SLT 6.0
  • 2005 - 2006 GMC Sierra 3500 SLE 8.1
  • 2005 - 2006 GMC Sierra 3500 WT 8.1
  • 2005 - 2006 GMC Sierra 3500 SLE 6.0
  • 2005 - 2006 GMC Sierra 3500 WT 6.0
  • 2005 - 2006 GMC Sierra 3500 SLT 8.1
  • 2005 - 2005 GMC Sierra 3500 Base 8.1
  • 2005 - 2005 GMC Sierra 3500 Base 6.0
  • 2006 - 2006 GMC Sierra 3500 SL 8.1
  • 2006 - 2006 GMC Sierra 3500 SL 6.0

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