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Flowmaster

Flowmaster FlowFX Cat-Back Exhaust System

2014-2019* (*Classic body only) GM Silverado/Sierra 1500 4.3L & 5.3L engines.

Part # 717857
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Introducing the new FlowFX® Cat-back exhaust system for 2014-2019*(*Classic body 5.3L, 4wd w/143.5-inch wb) GM Silverado/Sierra 4.3L and 5.3L engines. This performance exhaust system fits both 2/4 Wheel drive models with 143.5 and 153-inch wheelbases and is manufactured from 409S stainless steel for years of trouble-free service. Features include 3.00-inch inlet pipe leading into a FlowFX "straight-through" muffler for great sound and maximum performance. The single 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 installation instructions and all necessary hardware.

Features:

  • Large 4.50-inch Stainless Steel Black Ceramic Coated Tip
  • Deep Powerful Tone Inside and Outside the Vehicle
  • FlowFX "Straight-through" Performance Muffler
  • Uses the Factory Hanger Locations
  • Full Stainless Steel Construction
  • Lifetime Limited Warranty
  • Easy Installation

About Flowmaster

Flowmaster® is a household name, and for good reason. They've built legendary exhaust systems and mufflers for decades, and now offer performance air intakes, catalytic converters, and headers to give your hot rod performance to match the iconic Flowmaster sound.

Brand Flowmaster
CARB EONo
Emission Code5
Exhaust SeriesFlowFX
Exit PositionSingle Out Side
Material409 Stainless Steel
Mount TypeUses Factory Hangers
Muffler Inlet Diameter3
Muffler Outlet Diameter3
Muffler SeriesFlowFX
Product TypeExhaust System
Single DualSingle
Sound LevelModerate
System TypeCat-back
Tip CutAngle
Tip Diameter4.5
Tip Edge StyleRolled
Tip FinishBlack Ceramic
Tip Length11
Tip LogoEmbossed
Tip Material304 Stainless
Tip ShapeRound
Tubing Diameter (in)3
Tubing Material409S Stainless Steel
UPC700042039173
California Proposition 65 Chemical NameChromium (hexavalent compounds)
Nickel (Metallic)
California Proposition 65 RequiredYes
Part Number717857
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.

Fits 2014-2018 GM Silverado/Sierra 1500 4.3L & 5.3L engines, 2/4 Wheel Drive, 143.5 and 153-inch Wheelbases - Also fits 2019 GM 1500 (Legacy body only) 5.3L, 4WD, extended cab w/143.5-inch Wheelbase Does not fit two piece driveshaft models.
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Some parts are not legal for use in California or other states with similar regulations.