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Experience aggressive sound and enhanced performance with this stainless steel kit.
The Flowmaster American Thunder Exhaust System is designed to provide a powerful and aggressive exhaust tone while enhancing vehicle performance. Constructed from mandrel bent 16 gauge 409 stainless steel tubing, this cat-back system ensures durability and longevity. The system connects after the factory catalytic converter and is dyno tuned to maximize performance, making it a reliable choice for automotive enthusiasts.
This exhaust system features a single outlet design with a 3-1/2 inch pipe diameter and includes a 4 inch round stainless steel tip. The aggressive sound level is characteristic of Flowmaster's renowned exhaust systems, delivering the full-bodied tone that drivers seek. Installation is straightforward, requiring welding and estimated at two hours, with all necessary hardware included.
With its dual inlet and single outlet muffler configuration, the Flowmaster American Thunder system is engineered for optimal exhaust flow. This system not only enhances the auditory experience but also contributes to improved engine efficiency, making it a valuable addition to any performance vehicle.
Features
- Mandrel Bent 16 Gauge 409 Stainless Steel Tubing
- Aggressive And Powerful Exterior Exhaust Tone
- Connects After Factory Catalytic Converter
- Dyno Tuned For Maximum Performance
Specifications
- Manufacturer: Flowmaster
- Manufacturer Part Number: 817328
- Type: Cat-Back
- Exhaust Type: Single
- Outlet Type: Single
- Exit Position: Driver And Passenger Side Behind Tire
- Material: Stainless Steel
- Includes Muffler: Yes
- Sound Level: Aggressive
- Diameter (IN): 3-1/2 Inch
- Includes Exhaust Tip: Yes
- Exhaust Tip Style: 4 Inch Round Angle-Cut
- Exhaust Tip Material: Stainless Steel
- Muffler Quantity: 1
- Includes Exhaust Pipe Muffler Delete: No
- Muffler Configuration: Dual Inlet/ Single Outlet
- Muffler Brand: 50 Series Big Block
- Includes Hardware: Yes
- Required Welding: Yes
- Estimated Install Time (Hours): 2
Compatibility / Fit
- 2001-2004 Chevrolet Silverado 2500 HD
- 2001-2004 GMC Sierra 2500 HD
Technical Documents
Product Videos
Shipping & Returns
- This product ships within the continental USA only.
- This product typically ships within 1 to 3 business days.
- Returns are accepted within 30 days for items in like-new condition. For complete details, please see our return policy.
