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Flowmaster FlowFX Single Exit Cat-Back Exhaust System For 2019-2021 GM 1500 5.3L

Pricing: $557.95

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Introducing our new FlowFX® Cat-back exhaust system for the 2019-2021 GM Silverado/Sierra 1500 with the 5.3L engine. The performance exhaust system fits both 2 and 4-Wheel drive models with 148 or 157-inch wheelbases and is manufactured from 409S stainless steel for years of trouble-free service. Features include a 3.00-inch inlet pipe leading into a FlowFX "straight-through" muffler for great sound and maximum performance. The 3.00-inch mandrel-bent tailpipe exits out behind the rear passenger side tire and is finished off with large 4.50-inch diameter black ceramic coated 304S stainless steel tip, giving your Silverado/Sierra that custom look that goes hand in hand with the deep performance sound of the FlowFX muffler. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Includes detailed instructions and all necessary hardware.



  • Easy Installation
  • Lifetime Limited Warranty
  • Full Stainless Steel Construction
  • Uses the Factory Hanger Locations
  • FlowFX "Straight-through" Performance Muffler
  • Large 4.5-inch Stainless Black Ceramic Coated Tip
  • Deep Powerful Tone Inside and Outside the Vehicle



  • 2019-2021 GMC Sierra 1500 5.3L
  • 2019-2021 Chevrolet Silverado 1500 5.3L



  • Direct Replacement No Modifications required
  • Does Not fits Crew Cab 2WD with 2-pc driveshaft or trucks with factory dual exit tailpipes.
  • This part is legal for sale or use on Emissions Controlled Vehicles, Uncontrolled (Non-Emissions Controlled) Vehicles, and Racing Use Only Vehicles because it does not affect vehicle emissions and is not covered by emissions regulations


  • 717858
  • 717858
  • Flowmaster
  • New


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  • Item Requires Shipping
  • FREE Ground Shipping

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