GMC Sierra 1500 Performance Exhaust - Flowmaster - FlowFX Extreme Cat-Back - `14-`19
GMC Sierra 1500 Performance Exhaust - Flowmaster - FlowFX Extreme Cat-Back - `14-`19

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GMC Sierra 1500 Performance Exhaust - Flowmaster FlowFX Extreme Cat-Back (2014-2019). Built for 4.3L and 5.3L models, it brings an aggressive-to-moderate tone and an easy, bolt-on fit.
Built from 3.00-inch mandrel-bent 409 stainless, this kit pairs a Flow FX muffler with a dump-style turndown that exits after the muffler, removing the over-axle tailpipe for better ground clearance and departure angle. Dyno-tested max gains: 11 hp and 15 lb-ft at the rear wheels. Includes hardware, uses factory hangers, and carries a Flowmaster Lifetime Limited Warranty.
Features
- 3.00-inch 16-gauge 409 stainless tubing
- Flow FX muffler; aggressive-to-moderate sound
- Turndown dump exit for added clearance
- Uses factory hangers; hardware included
- Max dyno gains: 11 hp / 15 lb-ft at wheels
Questions or need guidance? Call us. We offer installation and customization at our Austin, Texas and Los Angeles, California area locations: 512-982-9393 (TX), 562-981-6800 (CA). 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




