Flowmaster American Thunder Cat-Back Exhaust System for Chevy Silverado & GMC Sierra 1500 2004-2007

For the person who is looking for an aluminized steel cat-back exhaust system with an aggressive exterior tone and moderate interior tone. The American Thunder® system is heavy 16-gauge mandrel-bent aluminized steel tubing for durability and maximum performance. Includes a Super 40™ Series performance muffler for that perfect blend of a deep aggressive exterior sound, with a moderate interior tone that won't drive you out of the cab when having a conversation. The dual 2.50-inch tailpipes clear the factory spare tire and give you two choices of exit locations. Straight out the back for that true dual look, or exiting out each side behind the rear wheels, which is ideal for towing. The system is finished off with a pair of highly polished 304 stainless steel tips embossed with the Flowmaster® name. Designed for an easy fit, these systems include all necessary parts, hardware and instructions for an easy installation you can do at home. Covered by our 3-year Limited Warranty. For those who prefer all stainless steel construction with a Lifetime Limited Warranty, check out exhaust system #817428. Notes: Fits 2/4 wheel drive with extended cab/short bed with 143.5-inch wheelbase. 1999-2007* Chevrolet Silverado, GMC Sierra 1500 4.3L, 4.8L, 5.3L engine. Aluminized Steel - Aggressive to moderate sound Fits 1999-2007* (*Classic body) Chevrolet Silverado & GMC Sierra 1500 4.3L, 4.8L and 5.3L engine with single-flanged catalytic converter. Fits 2/4 wheel drive with extended cab/short bed with 143.5-inch wheelbase.

• Includes Hangers and Hardware for an Easy Installation
• Mandrel-bent 16-gauge Aluminized Steel Tubing
• Moderate to Aggressive Exterior Exhaust Tone
• Connects After Factory Catalytic Converter
• Super 40 Series Performance Muffler
• Dyno-tuned for Maximum Performance
• Uses the Factory Hanger Locations
• 3-Year Limited Warranty
• Easy Installation

The Flowmaster American Thunder cat-back exhaust system is designed for 2004-2007 Chevrolet Silverado and GMC Sierra 1500 models with 143.5-inch wheelbase, offering a combination of durability and performance. Crafted from heavy-duty 16-gauge mandrel-bent aluminized steel tubing, this system ensures maximum longevity and optimal flow for enhanced vehicle performance. The inclusion of a Super 40 Series performance muffler provides an aggressive exterior exhaust tone, adding a commanding presence to your truck, while maintaining a moderate interior noise level for comfortable everyday driving. This balance makes it ideal for drivers seeking a sporty sound without excessive cabin noise. The dual 2.50-inch tailpipes are designed to clear the factory spare tire and offer two exit options: a traditional straight-out-the-back dual exit or side exits behind the rear wheels, which are particularly useful for towing applications. The system is completed with polished 304 stainless steel tips embossed with the Flowmaster logo, giving your truck a refined appearance. Installation is straightforward with included hardware, hangers, and instructions, allowing for a hassle-free setup that can be performed at home. Covered by a 3-year limited warranty, this exhaust system provides a reliable upgrade to enhance your vehicle's sound and performance. For those seeking all stainless steel construction with a lifetime warranty, Flowmaster offers a compatible system under part number 817428. This exhaust system is EPA compliant and designed specifically for 2/4 wheel-drive models with extended cabs and short beds, making it an excellent choice for Silverado and Sierra owners looking to improve sound and exhaust flow.

Features:

• Includes hangers and hardware for easy installation

• Mandrel-bent 16-gauge aluminized steel tubing for durability and optimal flow

• Produces an aggressive exterior sound with a moderate interior tone

• Connects after factory catalytic converter for seamless integration

• Super 40 Series performance muffler for enhanced exhaust flow and sound

• Dyno-tuned for maximum performance and efficiency

• Uses factory hanger locations for easy mounting

• Covered by a 3-year limited warranty for peace of mind

• Designed for easy installation with all necessary parts included

Fitments:
1999 Chevrolet Silverado 1500 Base
1999 Chevrolet Silverado 1500 LS
1999 Chevrolet Silverado 1500 LT
1999 GMC Sierra 1500 SL
1999 GMC Sierra 1500 SLE
1999 GMC Sierra 1500 SLT
2000 Chevrolet Silverado 1500 Base
2000 Chevrolet Silverado 1500 LS
2000 Chevrolet Silverado 1500 LT
2000 GMC Sierra 1500 SL
2000 GMC Sierra 1500 SLE
2000 GMC Sierra 1500 SLT
2001 Chevrolet Silverado 1500 Base
2001 Chevrolet Silverado 1500 LS
2001 Chevrolet Silverado 1500 LT
2001 GMC Sierra 1500 SL
2001 GMC Sierra 1500 SLE
2001 GMC Sierra 1500 SLT
2002 Chevrolet Silverado 1500 Base
2002 Chevrolet Silverado 1500 LS
2002 Chevrolet Silverado 1500 LT
2002 Chevrolet Silverado 1500 WT
2002 GMC Sierra 1500 Base
2002 GMC Sierra 1500 HT
2002 GMC Sierra 1500 SL
2002 GMC Sierra 1500 SLE
2002 GMC Sierra 1500 SLT
2002 GMC Sierra 1500 WT
2003 Chevrolet Silverado 1500 Base
2003 Chevrolet Silverado 1500 LS
2003 Chevrolet Silverado 1500 LT
2003 Chevrolet Silverado 1500 WT
2003 GMC Sierra 1500 Base
2003 GMC Sierra 1500 SL
2003 GMC Sierra 1500 SLE
2003 GMC Sierra 1500 SLT
2003 GMC Sierra 1500 WT
2004 Chevrolet Silverado 1500 Base
2004 Chevrolet Silverado 1500 Hybrid
2004 Chevrolet Silverado 1500 LS
2004 Chevrolet Silverado 1500 LT
2004 Chevrolet Silverado 1500 WT
2004 Chevrolet Silverado 1500 Z71
2004 GMC Sierra 1500 Base
2004 GMC Sierra 1500 SLE
2004 GMC Sierra 1500 SLT
2004 GMC Sierra 1500 WT
2005 Chevrolet Silverado 1500 Base
2005 Chevrolet Silverado 1500 Hybrid
2005 Chevrolet Silverado 1500 LS
2005 Chevrolet Silverado 1500 LT
2005 Chevrolet Silverado 1500 WT
2005 Chevrolet Silverado 1500 Z71 Off-Road
2005 GMC Sierra 1500 Base
2005 GMC Sierra 1500 Hybrid
2005 GMC Sierra 1500 SLE
2005 GMC Sierra 1500 SLT
2005 GMC Sierra 1500 WT
2006 Chevrolet Silverado 1500 Hybrid
2006 Chevrolet Silverado 1500 LS
2006 Chevrolet Silverado 1500 LT
2006 Chevrolet Silverado 1500 WT
2006 GMC Sierra 1500 Hybrid
2006 GMC Sierra 1500 SL
2006 GMC Sierra 1500 SLE
2006 GMC Sierra 1500 SLT
2006 GMC Sierra 1500 WT
2007 Chevrolet Silverado 1500 Classic Hybrid
2007 Chevrolet Silverado 1500 Classic LS
2007 Chevrolet Silverado 1500 Classic LT
2007 Chevrolet Silverado 1500 Classic WT
2007 GMC Sierra 1500 Classic Hybrid
2007 GMC Sierra 1500 Classic SL
2007 GMC Sierra 1500 Classic SLE
2007 GMC Sierra 1500 Classic SLT
2007 GMC Sierra 1500 Classic WT

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Regular Stock: t
Units Per Sku: 1