Product Summary

Cat-Back Exhaust System Type, Dual Single or Dual

  • 3.50-inch to dual 3.00-inch mandrel bent 409 stainless steel tubing, fits 2011-2019 Chevrolet/GMC 2500 HD
  • WITH 6.0L ENGINE, 2- or 4-WHEEL DRIVE, Extended Cab or Crew cab with 6.5” Bed Only
  • Note: may not fit with some fifth wheel hitches
  • Flow FX “Straight Through” muffler delivers and aggressive to moderate sound level with increased performance
  • Max gains of 10 hp and 10 lb-ft of torque at the rear wheels over stock
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Key Specs

MFG. Part #717987
Exhaust System TypeCat-Back
Single or DualDual
Bed Side TypeStandard
Exhaust Tubing Diameter3 Inch
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Need To Know

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Flowmaster 717987 Details

Fits 2011-2019 GM 2500HD/3500HD 6.0-Liter, Cat-Back, Dual Side Exit, Flow FX Stainless Steel Exhaust System

This Flowmaster® Flow FX® cat-back exhaust system for the 2011-2019 GM 2500HD/3500HD trucks with the 6.0-liter engine is manufactured using durable 409 stainless steel throughout and features 3.50 to 3.00-inch mandrel bent pipes for better exhaust gas flow. This system exits with dual 4.00-inch black stainless steel tips for added style and a custom look. Max gains of 10 hp and 10 lb-ft of torque at the rear wheels over stock. 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. Fits extended cab or crew cab models with the 6.5 foot bed only. Backed by Flowmaster's Lifetime Limited Warranty.

Features:
3.50-inch to dual 3.00-inch mandrel bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and improves durability
4.00-Inch black stainless steel tips add a custom look to the truck
Includes complete hardware and factory styled hangers in the stock locations for an easy installation
Flow FX “Straight Through” muffler delivers and aggressive to moderate sound level with increased performance
Max gains of 10 hp and 10 lb-ft of torque at the rear wheels over stock

Specs

  • Brand: Flowmaster
  • California Proposition 65: Yes
  • California Proposition 65 Chemical Name: Chromium (hexavalent compounds)
  • CARB (California) Compliant: Yes
  • Catalytic Converter Included: No
  • Catalytic Converter Quantity: 0
  • Category: Exhaust
  • Clamping Type: Flat Band
  • Clamps Included: Yes
  • Emission Code: 5
  • Exhaust Series: Flow FX
  • Exhaust Tip Color: Black
  • Exhaust Tip Connection: Clamp-On
  • Exhaust Tip Cut: Angled
  • Exhaust Tip Diameter: 4.00 IN
  • Exhaust Tip Edge: Angle Cut
  • Exhaust Tip Finish: Black Ceramic Coating
  • Exhaust Tip Intercooled: No
  • Exhaust Tip Length: 13.00 IN
  • Exhaust Tip Material: 304 Stainless Steel
  • Exhaust Tip Quantity: 2
  • Exhaust Tip Resonated: No
  • Exhaust Tip Shape: Round
  • Exhaust Tip Wall: Double Wall
  • Exit Style: Dual Out Side
  • Finish: Natural
  • Gasket Or Seal Included: No
  • Grade Type: Performance
  • Hangers Included: Yes
  • Inlet Type: Flanged
  • Main Piping Diameter: 3.00 IN
  • Mount Type: Uses Factory Hangers
  • Mounting Bracket Included: Yes
  • Muffler Body Height: 5.00 IN
  • Muffler Body Length: 18.00 IN
  • Muffler Body Material: 409 Stainless Steel
  • Muffler Body Shape: Oval
  • Muffler Body Width: 10.00 IN
  • Muffler Color: Silver
  • Muffler Finish: Natural
  • Muffler Flanged Inlet: No
  • Muffler Flanged Outlet: No
  • Muffler Included: Yes
  • Muffler Inlet Connection: Slip-Fit
  • Muffler Inlet Inside Diameter: 3.50 IN
  • Muffler Inlet Location: Center
  • Muffler Inlet Outside Diameter: 3.13 IN
  • Muffler Outlet Connection: Slip-Fit
  • Muffler Outlet Diameter: 3.00 IN
  • Muffler Outlet Location: Dual
  • Muffler Outlet Quantity: 2
  • Muffler Overall Length: 24.00 IN
  • Muffler Part Number: Kit Only
  • Muffler Quantity: 1
  • Muffler Series: Flow FX
  • Muffler Type: Absorption
  • Part Type: Exhaust System
  • Pipe Color: Silver
  • Pipe Material: 409 Stainless Steel
  • Product Type: Exhaust System
  • Sound Level: Aggressive / Moderate
  • Spring Bolt Kit Included: No
  • Sub Category: Exhaust and Tail Pipes
  • Tail Pipe Outlet Outside Diameter: 2.50 IN
  • Tail Pipe Quantity: 2
  • Tail Pipe Tapered Outlet: No
  • Tip Logo: Embossed
  • Type: Cat-Back
  • Valve Included: No
  • Valve Type: Not Applicable
  • Warning: California Proposition 65

Flowmaster 717987 Specifications

KEY SPECS
MFG. Part #717987
BrandFlowmaster
Exhaust System TypeCat-Back
Single or DualDual
Bed Side TypeStandard
Exhaust Tubing Diameter3 Inch
Exhaust System Kit TypeDirect Fit
GENERAL
Exhaust ExitDual Split Rear/Split Side
Cab TypeCrew & Extended
Exhaust Tip IncludedYes
Exhaust Tip Quantity2
Exhaust Tip Size4.00"
Exhaust Tip Length13.00
Exhaust System Material409 Stainless Steel
Exhaust System FinishNatural
Exhaust Pipe ColorNatural | Black
Muffler SeriesFlow FX
Muffler Material409 Stainless Steel
Muffler FinishNatural
Exhaust Tip Material304 Stainless Steel
Exhaust Tip FinishBlack Ceramic Coated
Exhaust Tip ColorBlack
Mount TypeUses Factory Hangers
Inlet Quantity1
Mandrel BentYes
Catalytic Converter(s) IncludedNo
Hardware IncludedYes
Heat ShieldNo
Sold in QuantityEach
Material Type410 Stainless Steel
Collector Reducers IncludedNo
Collector AttachmentNo
Exit Quantity2
Headers IncludedNo
Muffler IncludedYes
Exit LocationDual out side exit, behind rear tires
Crossover Pipe IncludedNo

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