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Flowmaster 717931 FlowFX Cat-Back Exhaust System Stainless Steel - 3.5

(2011-2019 Chevrolet Silverado 2500 HD; 2011-2019 Chevrolet Silverado 3500 HD; 2011-2019 GMC Sierra 2500 HD; 2011-2019 GMC Sierra 3500 HD)

Part of: Flowmaster FlowFX Cat-Back Exhaust System Stainless Steel

Other options in this family: Flowmaster 717876 Flowmaster 717944 Flowmaster 718156 Flowmaster 717893 Flowmaster 717858

Manufacturer

Picture for manufacturer Flowmaster

Part Number

717931
7 reviews
Sale Price

$899.95

In Stock (7)

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Usually delivered within 2 days

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Fitment guaranteed

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Product Details

The Flowmaster 717931 FlowFX Cat-Back Exhaust System delivers exceptional performance gains and a deep, moderate exhaust tone. Engineered with premium materials and precision manufacturing, this complete exhaust system offers a straightforward bolt-on upgrade for improved horsepower, torque, and throttle response.

Performance Benefits:

  • Maximum increases of up to 21 horsepower and 23 lb-ft of torque over stock exhaust at the rear wheels
  • FlowFX straight-through performance muffler design maximizes exhaust flow while delivering a deep, moderate performance tone
  • 3.5-inch mandrel-bent tubing eliminates restrictions and maintains consistent diameter throughout

Premium Construction:

  • 16-gauge 409 stainless steel tubing provides excellent durability and corrosion resistance
  • Mandrel-bent construction ensures smooth exhaust flow and maximum performance
  • 5-inch black ceramic coated exhaust tip adds a distinctive custom appearance

Complete Installation Kit:

  • Includes all necessary mounting hardware for hassle-free installation
  • Factory-styled hangers mount in stock locations for proper fitment
  • Bolt-on design allows for straightforward installation without modifications

This cat-back exhaust system is backed by Flowmaster's lifetime limited warranty, ensuring quality and peace of mind. The straight-through muffler technology provides an aggressive sound without excessive drone, making it ideal for daily driving and performance applications.

Products specifications

Fits

2011-2019 Chevrolet Silverado 2500 HD; 2011-2019 Chevrolet Silverado 3500 HD; 2011-2019 GMC Sierra 2500 HD; 2011-2019 GMC Sierra 3500 HD

Tip Diameter

3.500 in.

Prop 65

WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

California Proposition 65 Chemical Name

Nickel (Metallic)

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

Tubing Diameter

2.500 in.

Material

409 Stainless Steel

Exit Position

Single Side

Exhaust Type

Cat-Back

Brand

Flowmaster

Catalytic Converter Quantity

0

Category

Exhaust

Clamping Type

Flat Band

Clamps Included

Yes

Emission Code

5

Exhaust Series

FlowFX

Exhaust Tip Color

Black

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Rolled Edge

Exhaust Tip Finish

Black Ceramic Coating

Exhaust Tip Intercooled

No

Exhaust Tip Material

304 Stainless Steel

Exhaust Tip Quantity

1

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Single Wall

Exit Style

Single Out Side

Finish

Natural

Gasket Or Seal Included

No

Grade Type

Performance

Hangers Included

Yes

Inlet Type

Flanged

Mount Type

Uses Factory Hangers

Mounting Bracket Included

No

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Color

Silver

Muffler Finish

Natural

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Inlet Connection

Slip-Fit

Muffler Inlet Location

Center

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Location

Center

Muffler Outlet Quantity

1

muffler part number

Kit Only

Muffler Quantity

1

Muffler Series

FlowFX

Muffler Type

Absorption

Pipe Color

Silver

Pipe Material

409 Stainless Steel

Product Type

Exhaust System

Sound Level

Moderate

Spring Bolt Kit Included

No

Sub Category

Exhaust and Tail Pipes

Tail Pipe Quantity

Single

Tail Pipe Quantity

1

Tail Pipe Tapered Outlet

No

Tip Logo

Embossed

Tip Style

Single wall

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

.

First time buying anything eud rather rate after i receive my parts but the easy order experience an quick delivery dates had to give u a 4star

Still waiting for credit on 1 of the charges to my credit card. Only ordered 1 was charged for 3. One was removed but still waiting to see if charge for 3rd one taken off credit card. No response as yet

The part I needed was in stock at a fair price and delivery was free. Item delivered in perfect condition in a few days.

Everything was delivered on time and well packaged. Fits perfect

Quick to order

Great easy ordering

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