GMC Sierra 1500 Performance Exhaust - Rear - Flowmaster - FlowFX Cat-Back - Black - `19-`26
GMC Sierra 1500 Performance Exhaust - Rear - Flowmaster - FlowFX Cat-Back - Black - `19-`26

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GMC Sierra 1500 Performance Exhaust - Rear - Flowmaster - FlowFX Cat-Back - Black - 2019–2026. A direct-fit cat-back for 5.3L trucks that adds a deep, moderate tone and repeatable rear-wheel gains.
Made from 409S stainless steel, it runs a 3.00 in. inlet into a Flow FX straight-through muffler and a 3.00 in. mandrel-bent tailpipe exiting behind the passenger-side rear tire. A 4.50 in. black ceramic coated 304 stainless tip finishes the system. Uses factory hangers; hardware and instructions included. Fits 2019–2026 Sierra 1500 5.3L (2/4WD, 148/157 in. wheelbases); not for Crew Cab 2WD with 2-piece driveshaft or factory dual-exit trucks. Max dyno gains: +10 hp and +12 lb-ft. Lifetime limited warranty.
Features
- 409S stainless steel, 3.00 in. piping
- Flow FX straight-through muffler
- 4.50 in. black ceramic coated 304 stainless tip
- Uses factory hangers; hardware included
- Max dyno gains: +10 hp/+12 lb-ft; deep, moderate tone
Questions about fitment or install? Call our Austin, TX team at 512-982-9393 or our Los Angeles, CA area team at 562-981-6800. We offer installation and customization, and we install on premises at both locations. Buying multiple items? Contact us about possible shipping discounts.
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