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![Flow FX Dual Side Exit Cat-Back Exhaust System for 2020-2026 Chevrolet Silverado, GMC Sierra 6.6L [409 Stainless Steel]](https://www.jegs.com/images/mini_750/300/389/389-718111.jpg)
Vehicle Info NeededFLOWMASTERPART NUMBER: 389-718111
Flow FX Dual Side Exit Cat-Back Exhaust System for 2020-2026 Chevrolet Silverado, GMC Sierra 6.6L [409 Stainless Steel]
$94995
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Flow FX Dual Side Exit Cat-Back Exhaust System2020-2026 Chevrolet Silverado 2500 HD, 3500 HD, GMC Sierra 2500 HD, 3500 HD 6.6L 3 in. Piping Dual Side Exit 4.5 in. Black Ceramic Tips 409 Stainless Steel Sold as a Kit
Flow FX gives 2020-2026 Chevrolet Silverado 2500 HD, 3500 HD, GMC Sierra 2500 HD, 3500 HD a cat-back exhaust built from 409 stainless steel with a straight-through muffler, dual side exit routing and 4.5 in. black ceramic tips.
Flowmaster 718111 Features:
- 3 in. mandrel-bent 409 stainless steel tubing in 16-gauge.
- Dual Side Exit with 4.5 in. black ceramic tips.
- Flow FX series straight-through muffler for moderate sound.
- Clamps and factory-style hangers for the stock locations are included.
Flowmaster 718111 Applications:
- 2020-2026 Chevrolet Silverado 2500 HD, 3500 HD 6.6L
- 2020-2026 GMC Sierra 2500 HD, 3500 HD 6.6L
Flowmaster 718111 Compatibility Notes:
- 2020-2026 GM 2500HD/3500HD Trucks with 6.6-liter gas engines. Fits 2 & 4-wheel drive, Crew Cab with 6.5-foot bed only. Does not fit 5th wheel towing packages. Does not fit ZR2 and AT4X packages.
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.
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 Height11.8
Package Width16.4
Package Length58.2
Weight71.0 PG
Tip Diameter4.5 in (114.3 mm)
Muffler Inlet Inside Diameter3.5 in (88.9 mm)
Hangers IncludedYes
Main Piping Diameter3 in (76.2 mm)
Tail Pipe Quantity2
Inlet TypeFlanged
Tip CutAngle
Exhaust Tip Material304 Stainless Steel
Catalytic Converter Quantity0
Exit LocationRear
Tip FinishBlack Ceramic
Muffler Body Length18 in (457.2 mm)
Sound LevelModerate
Tube Diameter3.500 in. to 2.750 in.
Muffler Body Material409 Stainless Steel
Exhaust Tip CutAngled
Gasket Or Seal IncludedNo
Exhaust Tip IntercooledNo
Pipe ColorSilver
Exhaust Tip Length11 in (279.4 mm)
Muffler Quantity1
Muffler Inlet Outside Diameter3.63 in (92.2 mm)
Exit QuantityTwo
Muffler Flanged OutletNo
Tip Quantity2
Exhaust Tip ResonatedNo
Muffler Outlet LocationDual
Catalytic Converter IncludedNo
Catalytic Converter(S) IncludedNo
Part CategoryPerformance Parts
Hardware IncludedYes
Exhaust Tip WallSingle Wall
Exhaust Tip Quantity2
Muffler Inlet LocationCenter
Exhaust Tip FinishBlack Ceramic Coating
Exhaust Tip EdgeRolled Edge
Valve IncludedNo
Muffler TypeAbsorption
Pipe Material409 Stainless Steel
Muffler Body Width10 in (254 mm)
Tail Pipe Tapered OutletNo
Exit PositionRear
Muffler Body ShapeOval
Mounting Bracket IncludedNo
Muffler Outlet Quantity2
Muffler FinishNatural
Mount TypeUses Factory Hangers
Clamps IncludedYes
Muffler StyleStraight through
FinishNatural
Exit StyleDual Out Side
Muffler Body Height5 in (127 mm)
Tip IncludedYes
Clamping TypeFlat Band
Muffler Flanged InletNo
Mandrel-BentYes
Spring Bolt Kit IncludedNo
Muffler SeriesFlow FX
QuantitySold as a Kit
Muffler IncludedYes
Exhaust Tip ConnectionClamp-On
System StyleCat-back
Tail Pipe Outlet Outside Diameter3 in (76.2 mm)
System Material409 Stainless Steel
Valve TypeNot Applicable
Tip ShapeRound
Exhaust Tip Diameter4.5 in (114.3 mm)
Part FitmentDirect Fit
Vendor Part Number718111
Package Qty1
Package TypeEA
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