Flowmaster Exhaust Chevy Silverado / GMC Sierra 2500HD/3500HD 6.6L V8 (21-24) 3.0" Catback - American Thunder 817933

American Thunder® is the "original" Flowmaster sound. In most cases a very aggressive sound level, American Thunder systems use various chambered mufflers to achieve the performance gains and aggressive sound that you want from your car or truck, inside and out. Available in stainless steel or economical aluminized steel, American Thunder systems are a great choice when you want to be heard.

Fitment Information

• Chevy Silverado / GMC Sierra 2500HD/3500HD 6.6L V8 (2021, 2022, 2023, 2024)
• Crew Cab/6.5ft bed only. Will not fit models with 5th wheel tow hitch installed.

Emissions Compliance

This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations.

Specs & Features

• Emission Code: 5
  
• Exhaust Series: American Thunder
  
• Exit Position: Dual Out Rear / Dual Out Side
  
• Heat Shield: No
• Material: 409 Stainless Steel
  
• Mount Type: Uses Factory Hangers
  
• Muffler Body Length (in): 18
  
• Muffler Color: Black
  
• Muffler Finish: Painted
  
• Muffler Inlet Diameter: 3.50
  
• Muffler Inlet Location: Centered
  
• Muffler Material: 409S Stainless Steel
  
• Muffler Outlet Diameter: 3.00
  
• Muffler Outlet Location: Dual Outlet
  
• Muffler Overall Length (in): 24
  
• Muffler Part Number: Kit Only
  
• Muffler Quantity: Not included
  
• Muffler Series: 50 Series HD
  
• Muffler Shape: Oval
  
• Muffler Type: Reflection
  
• Product Type: Exhaust System
  
• Single Dual: Dual
  
• Sound Level: Aggressive / Moderate
  
• System Type: Cat-back
  
• Tip Cut: Angle
  
• Tip Diameter: 4.00
  
• Tip Edge Style: Cut
  
• Tip Finish: Polished 
  
• Tip Length: 13
  
• Tip Logo: Embossed
  
• Tip Material: 304 Stainless
  
• Tip Quantity: 2.00
  
• Tip Shape: Round
  
• Tip Style: Double Wall
  
• Tubing Diameter (in): 3.5/3
  
• Tubing Material: 409S Stainless Steel
  
• UPC: 700042039760
  
• California Proposition 65 Chemical Name: Chromium (hexavalent compounds) / Nickel (Metallic)
• California Proposition 65 Required: Yes
  
• Part Number: 817933

Product Description

The Flowmaster American Thunder® Cat-back exhaust system for the 2020-2024 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks with the 6.6L gas engine, has a moderate to aggressive sound level inside and outside of the truck, with all of the performance benefits you expect from Flowmaster. Designed for the Crew Cab, Standard Bed (6.5 ft.) models only, this bolt-on, emissions-legal system features a stainless steel 50 Series HD„¢ muffler and large dual 3.00-inch 409 stainless steel mandrel-bent tailpipes that can be configured to exit either dual straight out the back, or dual out the sides behind the rear wheels which is best suited for towing applications. The system is finished off with a pair of large 4.00-inch polished 304 stainless steel tips and is covered by our Lifetime Limited Warranty. Designed for an easy fit, this system includes all necessary parts and hardware for installation.

Features:

• Mandrel-bent 16-gauge Tubing for Maximum Exhaust Flow
• Uses the Factory Hanger Locations for Easy Installation
• 50 Series HD Muffler with Delta Flow Technology
• 409 Stainless Steel Construction for Long Life
• Increased Performance and Exhaust Flow
• Multiple Tailpipe Exits Provided in Kit
• Large 3.00-inch Dual Tailpipes
• Deep Powerful Exterior Sound
• Lifetime Limited Warranty
• Flowmaster Quality

Redline360 is an authorized Flowmaster dealer and sells only genuine Flowmaster products.