GMC Sierra 1500 Performance Exhaust - Flowmaster - Cat-Back, Flow FX Extreme - `19-`26
GMC Sierra 1500 Performance Exhaust - Flowmaster - Cat-Back, Flow FX Extreme - `19-`26

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GMC Sierra 1500 Performance Exhaust - Flowmaster - Cat-Back, Flow FX Extreme (2019-2026). Built for the 5.3L Sierra 1500, this stainless cat-back delivers an aggressive-to-moderate tone with freer exhaust flow.
Featuring a Flow FX muffler and 3.00-inch mandrel-bent 409 stainless steel, this system uses a turndown, dump exit right after the muffler, eliminating the over-axle tailpipe to improve ground clearance and departure angle off-road. Flowmaster reports max dyno gains of 15 hp and 20 lb-ft at the rear wheels. It includes all necessary hardware, uses factory hanger locations, and is backed by Flowmaster’s Lifetime Limited Warranty.
Features
- Fits 2019-2026 GMC Sierra 1500 5.3L (2019 new body only)
- 3.00-inch 16-gauge mandrel-bent 409 stainless steel
- Flow FX Series muffler; aggressive-to-moderate sound
- Dump-after-muffler turndown for added clearance
- Includes hardware; uses factory mounts
- Reported gains up to 15 hp and 20 lb-ft at the wheels
Have questions or want to schedule installation or customization? Call our Austin, TX shop at 512-982-9393 or our Los Angeles, CA area shop at 562-981-6800. We offer installation and customization services at both locations. If you are considering multiple items, contact us for potential shipping discounts. We install on premises at both locations.
CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov






