My Account
My Garage
Shopping Cart
MY GARAGE Select Vehicle
MY GARAGE

Flowmaster 717885 Flow FX Cat-Back Exhaust System

(2011-2018 Chevrolet Silverado 1500; 2011-2013 GMC Sierra 1500 SLE; 2011-2018 GMC Sierra 1500 Denali/SLT)

Manufacturer

Part Number

717885
Sale Price

$649.95

In Stock (10+)

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Authorize Seller Badge
No Hassle Returns

No Hassle Returns

Live-in-stock inventory

Live-in-stock inventory

Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster 717885 Flow FX Cat-Back Exhaust System is engineered to deliver both performance gains and an aggressive sound for your truck. This complete exhaust system features a straight-through FlowFX muffler design that maximizes exhaust flow while producing a deep, moderate performance tone that's perfect for daily driving and weekend adventures.

Performance Benefits:

  • Dyno-proven gains of up to 16 horsepower and 16 lb-ft of torque over stock exhaust
  • 3.50-inch mandrel-bent tubing maintains consistent diameter for optimal exhaust flow
  • Straight-through muffler design reduces backpressure and improves throttle response

Quality Construction:

  • 16-gauge 409 stainless steel tubing for maximum durability and corrosion resistance
  • 5.00-inch black ceramic coated exhaust tip adds a custom, aggressive appearance
  • Factory-styled hangers mount in stock locations for a secure, rattle-free fit

Installation:

  • Includes all necessary hardware for a complete bolt-on installation
  • Direct fit design makes installation straightforward for experienced DIYers
  • No cutting or welding required

Backed by Flowmaster's Lifetime Limited Warranty, this cat-back system delivers the perfect combination of performance, sound, and style for truck enthusiasts who demand the best.

Products specifications

Fits

2011-2018 Chevrolet Silverado 1500; 2011-2013 GMC Sierra 1500 SLE; 2011-2018 GMC Sierra 1500 Denali/SLT

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

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

Clamp-On

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 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

1

Tail Pipe Quantity

Single

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

Had what I needed in stock and shipped it out quickly. Would have been nice to have the option to ship on my account and get it sooner. Overall good experience and I will come back if I need similar items.

may shop again

Good experience

.

Very quiet delivery Correct merch Will be ordering from you again!!

just fine

Share icon
Return Policy
Returns are easy at THMotorsports

Not happy with a purchase? No problem. We've made returning items as easy as possible. And most purchases can be returned for free for 30 days. Learn more about our Returns Policy