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Flowmaster Stainless Steel FlowFX Cat-Back Exhaust System Tahoe/Yukon 5.3L 2015-2020

Flowmaster Stainless Steel FlowFX Cat-Back Exhaust System Tahoe/Yukon 5.3L 2015-2020

Regular price $824.95 USD
Regular price $917.00 USD Sale price $824.95 USD
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Flowmaster Stainless Steel FlowFX Cat-Back Exhaust System Tahoe/Yukon 5.3L 2015-2020


SKU: 717988

This Flowmaster FlowFX catback exhaust system for the 2011-2018 GM 1500 trucks with the 6.2-liter V8 engine is manufactured using durable 409 stainless steel throughout and features single 3.50-inch to dual 2.50-inch mandrel bent pipes for better exhaust gas flow, and a FlowFX "straight-through" muffler is used for a moderate sound level and maximum performance.

Maximum increases on the dyno revealed +11 hp and +15 lb-ft at the rear wheels. This system exits out both sides, behind the rear wheels with 4.50-inch black ceramic tips for added style and a custom look. The system uses all the existing factory hanger locations and includes installation instructions and all necessary hardware for an easy installation that you can do at home.: Backed by Flowmaster's Lifetime Limited Warranty.


  • Max increases of up to 11 hp and 15 lb-ft over the stock exhaust at the rear wheels
  • Single 3.50-inch to dual 2.50-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
  • 4.50-Inch black ceramic coated tips add 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


  • Exhaust Series: FlowFX
  • Exit Position: DOS
  • Mount Type: Uses Factory Hangers
  • Muffler Body Length (in): 18
  • Muffler Color: Natural
  • Muffler Finish: Brushed
  • Muffler Inlet Diameter: 3.50
  • Muffler Inlet Location: Centered
  • Muffler Material: 409S Stainless Steel
  • Muffler Outlet Diameter: 2.50
  • Muffler Outlet Location: Dual Outlet
  • Muffler Overall Length (in): 24
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: FlowFX
  • Muffler Shape: Oval
  • Muffler Type: Absorption
  • Product Type: Exhaust System
  • Single Dual: Dual
  • Sound Level: Moderate
  • System Type: Cat-back
  • Tip Cut: Angle
  • Tip Diameter: 4.50
  • Tip Edge Style: Rolled
  • Tip Finish: Black Ceramic
  • Tip Length: 11
  • Tip Logo: Embossed
  • Tip Material: 304 Stainless
  • Tip Quantity: 2.00
  • Tip Shape: Round
  • Tip Style: Single Wall
  • Tubing Diameter (in): 2.50
  • Tubing Material: 409S Stainless Steel

Vehicle Fitment:

  • 2015 Chevrolet Silverado 1500 / GMC Sierra
  • 2016 Chevrolet Silverado 1500 / GMC Sierra
  • 2017 Chevrolet Silverado 1500 / GMC Sierra
  • 2018 Chevrolet Silverado 1500 / GMC Sierra
  • 2019 Chevrolet Silverado 1500 / GMC Sierra
  • 2020 Chevrolet Silverado 1500 / GMC Sierra


Product image for illustration purposes only. Actual product may vary.

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