GMC Sierra 1500 Performance Exhaust - Flowmaster - American Thunder Cat-Back, Quad Tips - Black - `19-`23
GMC Sierra 1500 Performance Exhaust - Flowmaster - American Thunder Cat-Back, Quad Tips - Black - `19-`23

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GMC Sierra 1500 Performance Exhaust - Flowmaster American Thunder Cat-Back, Quad Tips, Black (2019-2023). A bolt-on stainless system that adds a bold, aggressive note outside with a moderate tone in the cabin.
Engineered for the 6.2L platform, this cat-back uses a mandrel-bent 3.50 in stainless inlet feeding a 50 Series HD muffler, then splits to dual 2.50 in stainless tailpipes that replace the factory resonators. Quad 4.00 in black ceramic coated stainless tips exit through the factory bezels for a clean, factory-style location. It’s emissions-legal, uses factory hanger locations, and includes all hardware and instructions. Fits 147/157 in wheelbases: Crew Cab 5.5/6.5 ft and Double Cab 6.5 ft with factory dual tailpipes and bumper cutouts; not for Multimatic.
Features
- Aggressive exterior, moderate interior tone
- Mandrel-bent stainless construction
- 50 Series HD muffler; dual 2.50 in tails (resonator delete)
- Quad 4.00 in black ceramic coated stainless tips
- Bolt-on install; uses factory hangers; limited lifetime warranty
Questions or ready to schedule install? Call our Austin shop at 512-982-9393 or our Los Angeles area shop at 562-981-6800. We offer installation and customization at both locations.
If you’re considering multiple items, contact us for shipping discounts. We install on premises at both locations.
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