Order Status & Returns
Gift Cards
Help Center
1-800-345-4545
Vehicle Info NeededFLOWMASTERPART NUMBER: 389-717857
FlowFX Cat-Back Exhaust System 2014-2018 GM Silverado/Sierra 1500 4.3L 5.3L V8 2WD/4WD - 143.500 & 153 in. Wheelbases
$72795
4 left in stock
Ships on Sep 14, 2026
Lowest Price GuaranteeGM Trucks
FlowFX Cat-Back Exhaust System2014-18 GM Silverado/Sierra 1500 4.3L, 5.3L V8 2/4WD 2019 Chevy Silverado 1500 (Legacy Only) 5.3L 4WD Extended Cab 143.5 & 157.5 in. Wheelbase 3 in. Tubing 4.5 in. Black Ceramic Tip Single Out Side Exit
FLOWMASTER MUFFLERS 717857 Features:
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.- 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
Aggressive Exhaust Tone
Bright 409 stainless steel Flowmaster FlowFX Exhaust Systems have straight-through FlowFX mufflers with a large core for a deep, moderate-to-aggressive exterior and interior sound. Each kit is designed and dyno-tuned for maximum performance, so you know you are getting the most out of your exhaust system.
Part TypeExhaust System
Product LineFlowmaster FlowFX Exhaust Systems
BrandFLOWMASTER
Package Height15.5
Package Width16.0
Package Length59.0
Weight60.0 PG
Muffler Inlet Inside Diameter3 in.
Hangers IncludedYes
Main Piping Diameter3 in.
Tail Pipe QuantitySingle
Inlet TypeClamp-On
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Muffler Body Length18 in.
Sound LevelModerate
Muffler Body Material409 Stainless Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
Muffler Quantity1
Muffler Inlet Outside Diameter3.13 in.
Muffler Flanged OutletNo
Exhaust Tip ResonatedNo
Catalytic Converter IncludedNo
Part CategoryPerformance Parts
Exhaust Tip WallSingle Wall
Exhaust Tip Quantity1
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip EdgeRolled Edge
Valve IncludedNo
Muffler TypeAbsorption
Pipe Material409 Stainless Steel
Muffler Body Width9 in.
Tail Pipe Tapered OutletNo
Muffler Body ShapeOval
Mounting Bracket IncludedNo
Muffler Outlet Quantity1
Muffler FinishNatural
Mount TypeUses Factory Hangers
Clamps IncludedYes
FinishNatural
Exit StyleSingle Out Side
Muffler Body Height4 in.
Clamping TypeFlat Band
Muffler Flanged InletNo
Spring Bolt Kit IncludedNo
Muffler SeriesFlow FX
Muffler IncludedYes
Exhaust Tip ConnectionClamp-On
Tail Pipe Outlet Outside Diameter3 in.
Valve TypeNot Applicable
Exhaust Tip Diameter4.50 in.
Part FitmentDirect Fit
Vendor Part Number717857
Package Qty1
Package TypeEA
No Questions
No Reviews
Items You Need
K&N
33-2129 High Performance O.E. - Style Replacement Filter 1999-2017 Chevy/GMC Silverado/Sierra 1500/2500 & Tahoe/Yukon
Part Number : 599-33-2129
$5519
K&N
63 Series GM Full Size Pickup Truck AirCharger High-Flow Intake Kit
Part Number : 599-63-3085
$36799
K&N
Part Number : 599-33-2129
$5519
K&N
Part Number : 599-63-3085
$36799
ITEM YOU MAY ALSO CONSIDER
Some parts are not legal for use in California or other states with similar laws / regulations
