Description
Moderate to Aggressive Sounds. This Flowmaster American Thunder Dual Exhaust System with Black Tips and rear exits is specially designed to give the Sierra 1500 a classic moderate to aggressive rumble. Additionally, the interior resonance is mild, perfect for long drives.
Improves Power and Performance. The mandrel-bent pipes that produce the finely tuned sounds of this Flowmaster American Thunder Dual Exhaust System also improve the Sierra 1500’s horsepower and torque output. The Series 50 HD Chambered muffler is specially designed to increase horsepower, torque, and engine efficiency.
Precision Construction. This Flowmaster American Thunder Dual Exhaust System features mandrel-bent pipes and precision-crafted components. It’s made from high-grade parts to ensure durability and toughness for long years of service.
Bolt-On Installation. To simplify the installation process, this Flowmaster American Thunder Dual Exhaust System is designed to use the factory hangers. No welding is required.
Application. This Flowmaster American Thunder Dual Exhaust System with Black Tips and rear exit will fit 2019-2023 6.2L Sierra 1500s with Factory Dual Exhaust.
Flowmaster 817891
CA Residents: WARNING: Cancer and Reproductive Harm
- Moderate to Aggressive Exterior Tone
- Mild Interior Resonance
- Improves Horsepower and Torque
- Flowmaster Series 50 HD Chambered Muffler
- With 2.50-Inch Tubing
- Quad 4-Inch Black Tips
- Split Rear Exit
- Bolt-On Installation
- Legal for Use on Emissions Controlled Vehicles
- Fits 2019-2023 6.2L Sierra 1500s with Factory Dual Exhaust
| Brand | Flowmaster |
| Exhaust System Type | Cat-Back System |
| Exhaust Tip Finish | Black, Black Chrome |
| Exhaust Tubing Diameter | 2.50 Inch |
| Exhaust Material | Stainless Steel |
| Exhaust Tip Outlet Style | Quad |
| Exhaust Exit Location | Rear – Dual |
| Exhaust Loudness | Moderate |
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