Chevrolet Silverado Performance Exhaust - Dual Out Rear/Side Exit - Flowmaster - American Thunder Cat-Back - `19-`26
Chevrolet Silverado Performance Exhaust - Dual Out Rear/Side Exit - Flowmaster - American Thunder Cat-Back - `19-`26

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Chevrolet Silverado Performance Exhaust - Dual Out Rear/Side Exit - Flowmaster American Thunder Cat-Back (2019–2026). A bolt-on stainless system for 2.7L trucks that delivers a deeper, moderate tone with proven performance gains.
Built from 16-gauge 409 stainless with dual 2.50-inch mandrel-bent tubing, this American Thunder cat-back uses a 50 Series Big Block muffler for balanced sound and flow. Testing shows up to 4 hp and 11 lb-ft at the wheels. Dual 3.50-inch polished tips allow rear or side exit. Installs using factory hangers with included hardware. Fits 2019–2026 Silverado/Sierra 2.7L (2WD/4WD), 147- and 157-inch wheelbases; not for Multimatic. Backed by Flowmaster’s Lifetime Limited Warranty.
Features
- 16-gauge 409 stainless steel throughout
- Dual 2.50 in. mandrel-bent tubing
- 50 Series Big Block muffler; deep, moderate tone
- Dual 3.50 in. polished tips; rear or side exit
- Uses factory hangers; hardware and instructions included
Have questions or planning a build? Call our team in Austin, TX at 512-982-9393 or in the Los Angeles, CA area at 562-981-6800. We offer professional installation and customization at both locations.
Thinking about multiple items? Contact us for shipping discounts. We install on premises at both locations.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov












