The Flowmaster® American Thunder® Cat-back exhaust system, meticulously crafted for 2020-2024 Chevy Silverado and GMC Sierra 2500HD and 3500HD trucks featuring the 6.6L gas engine, ensures a moderate to aggressive sound level both inside and outside the truck, coupled with the anticipated performance advantages characteristic of Flowmaster®. Specifically designed for Crew Cab, Standard Bed (6.5 ft.) models, this bolt-on, emissions-compliant system boasts a stainless steel 50 Series HD™ muffler and substantial dual 3.00-inch 409 stainless steel mandrel-bent tailpipes.
Tailored for easy customization, the tailpipes can be configured to exit either dual straight out the back or dual out the sides behind the rear wheels, making it optimal for towing applications. The system is elegantly completed with a pair of large 4.00-inch polished 304 stainless steel tips, providing a finishing touch that matches its robust performance. Backed by our esteemed Lifetime Limited Warranty, this system guarantees durability and longevity.
Engineered for a straightforward fit, the system includes all necessary components and hardware for installation, ensuring a hassle-free process.
Notes: Fits Crew Cab with a 6.5' bed length and 159-inch wheelbase only.
- Mandrel-bent 16-gauge Tubing for Maximum Exhaust Flow
- Utilizes the Factory Hanger Locations for Easy Installation
- Equipped with a 50 Series HD Muffler featuring Delta Flow Technology
- Constructed with 409 Stainless Steel for Long Life
- Increased Performance and Exhaust Flow
- Multiple Tailpipe Exits Provided in Kit
- Large 3.00-inch Dual Tailpipes
- Delivers a Deep Powerful Exterior Sound
- Lifetime Limited Warranty
- Flowmaster Quality
- Local Pickup Available:
- Local Delivery Available:
- Additional Handling: