GMC Sierra 1500 Performance Exhaust - Rear - Flowmaster - Cat Back, Flow FX, Single Rear Exit - Black - `14-`18
GMC Sierra 1500 Performance Exhaust - Rear - Flowmaster - Cat Back, Flow FX, Single Rear Exit - Black - `14-`18

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GMC Sierra 1500 Performance Exhaust - Flowmaster Flow FX Cat-Back, Single Rear Exit (Black), 2014-2018. A straight-through system that adds a deep, moderate performance tone with durable stainless-steel construction.
Designed for 4.3L and 5.3L 2WD/4WD models with 143.5- or 153-inch wheelbases, this kit uses a 3.00-inch inlet feeding a Flow FX straight-through muffler and a 3.00-inch mandrel-bent tailpipe exiting behind the passenger-side rear tire. The system is built from 409S stainless for long service and finished with a 4.50-inch black ceramic-coated 304 stainless tip. It reuses factory hangers for an easy install and includes detailed instructions and hardware. Backed by Flowmaster’s limited lifetime warranty.
Features
- Fits 2014-2018 GMC Sierra 1500 4.3L/5.3L, 2WD/4WD, 143.5"/153" WB
- 409S stainless-steel construction
- Flow FX straight-through performance muffler
- 3.00" mandrel-bent tubing; single rear exit
- 4.50" black ceramic-coated 304 stainless tip
- Uses factory hangers; hardware and instructions included
Questions or ready to schedule? Call 512-982-9393 (Austin, TX) or 562-981-6800 (Los Angeles area). We offer professional installation and customization at both locations. If you’re considering 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







