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

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GMC Sierra Performance Exhaust - Dual Out Rear/Side Exit - Flowmaster American Thunder Cat-Back (2019-2026). For 2.7L trucks, it delivers a deep, moderate tone and improved flow.
Built from dual 2.50-inch mandrel-bent 16-gauge 409 stainless steel, this cat-back features a 50 Series Big Block performance muffler for balanced sound and drivability. Gains up to 4 hp and 11 lb-ft at the rear wheels over stock. Dual 3.50-inch polished tips can exit out the rear or side. Installs with factory hangers; hardware and instructions included. Backed by Flowmaster’s Lifetime Limited Warranty. Fits 2019-2026 Chevrolet Silverado 1500 and GMC Sierra 1500 with 2.7L, 2WD/4WD, 147- and 157-inch wheelbases; not for Multimatic suspension.
Features
- Cat-back, dual out rear or side configuration
- Dual 2.50-inch 16-gauge 409 stainless tubing
- 50 Series Big Block muffler, deep moderate tone
- Dual 3.50-inch polished tips
- Bolt-on install with factory hangers; hardware included
Questions or want to schedule service? Call Austin, TX at 512-982-9393 or Los Angeles, CA at 562-981-6800. We offer installation and customization at our Austin and Los Angeles area locations.
Buying 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












