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Flowmaster

Flowmaster Flow FX Extreme Cat-Back Exhaust System

Fits 2019*-2025 (*2019 New Body) Chevrolet/GMC Silverado/Sierra 1500 5.3L, Flow FX Extreme 3.00-inch Stainless Steel Cat-Back Exhaust System

Part # 717977 Be the first to write a review

Flowmaster Flow FX Extreme Cat-Back Exhaust System

Estimated Ship Date: 03/25/2025
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MSRP $379.95
$303.26
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Emissions

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.

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Flowmaster introduces our Flow FX Extreme stainless steel cat-back exhaust system for the 2019*-2025 (* 2019 New Body Only) Chevrolet/GMC Silverado/Sierra 1500 with the 5.3L engine. This system uses a Flow FX series muffler for an aggressive to moderate sound level and increased performance. 3.00-inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and durability. The system has a turndown style, dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps improve ground clearance and departure angle when you are driving in more extreme off-road situations. This system produced max dyno gains of 15 hp and 20 lb-ft at the rear wheels. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty.

Features:

  • FlowFX Series performance muffler offers an aggressive to moderate sound level and increased performance
  • 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
  • Max dyno gains of 15 hp and 20 lb-ft at the rear wheels
  • 3.00-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
  • Includes all necessary hardware for an at home installation
  • Dump style exit allows for better ground clearance when in extreme off-road conditions
  • Uses factory hanger locations for easy installation
  • Lifetime Limited Warranty
Brand Flowmaster
Catalytic Converter Quantity0
CategoryExhaust
Clamps IncludedYes
Emission Code5
Exhaust SeriesFlowFX
Exhaust System Kit TypeCat-Back
Exhaust Tip IntercooledNo
Exhaust Tip Quantity0
Exit PositionSOD (Single Out Dump)
Exit StyleSingle Out Dump
FinishNatural
Gasket Or Seal IncludedNo
Grade TypePerformance
Hangers IncludedYes
Main Piping Diameter3.00 IN
Material409 Stainless Steel
Mount TypeUses factory hangers
Muffler Body Length14.00 IN
Muffler ColorSilver
Muffler FinishNatural
Muffler Inlet Diameter3.00 IN
Muffler Inlet LocationCenter
Muffler Material409 Stainless Steel
Muffler Outlet Diameter3.00 IN
Muffler Outlet LocationCenter
Muffler Overall Length44.00 IN
Muffler Part NumberKit Only
Muffler Quantity1
Muffler SeriesFlowFX
Muffler ShapeRound
Muffler TypeAbsorption
part typeExhaust System Kit
Pipe Material409 Stainless Steel
Product TypeExhaust System
Single DualSingle
Sound LevelAggressive / Moderate
Sub CategoryExhaust and Tail Pipes
System TypeCat-back
Tail Pipe Tapered OutletNo
Tip CutTurndown
Tip Diameter3.00 IN
Tip Edge StyleCut
Tip StyleNot Included
Tubing Diameter3.00 IN
Tubing Material409 Stainless Steel
TypeCat-Back
Valve IncludedNo
Valve TypeNot Included
UPC090127130827
California Proposition 65 Chemical NameChromium (hexavalent compounds), Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number717977
5

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.
Instructions - 717977_instructions.pdf
Instructions - fm_warranty_general.pdf

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