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Flowmaster 717885 FlowFX Cat-Back Exhaust Kit 3.5 Inch Stainless Steel 5 Inch Black Ceramic Coat Stainless Tip Compatible with 2011-2018 Chevy Silverado GMC Sierra 1500 6.2L 2/4WD All Wheelbases

4.6 (1) Write Review
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$513.54

$ 99 .00 $99.00

In Stock

About this item

  • Max increases of up to 16 hp and 16 lb-ft. over the stock exhaust at the rear wheels
  • 3.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • 5.00-inch black ceramic coated tip adds a custom look to the truck
  • Includes complete hardware and factory styled hangers in the stock locations for an easy installation
  • FlowFX “straight through” performance muffler delivers a deep, moderate performance tone and improves exhaust flow


Flowmaster 717885 FlowFX Cat-Back Exhaust System Stainless 3.5 in Single Side Exit


SuperiorPotomac
Reviewed in the United States on June 9, 2023
Easy install, didn’t even Jack the truck up. However, save yourself the headache and purchase a new clamp for the after cat OEM connection . The Flowmaster kit does not come with that clamp. Otherwise, a solid upgrade. I ended up not installing the tail pipe or the 5” tip. It look’s cleaner and sounds better.