My Account
My Garage
Shopping Cart

Shopping Cart

0 items in your Cart
View Cart
Subtotal
Track
My Order
MY GARAGE Select Vehicle
MY GARAGE

Flowmaster 717927 Flow FX Cat-Back Exhaust System

(2020-2026 Chevrolet Silverado 2500 HD; 2020-2026 Chevrolet Silverado 3500 HD; 2020-2026 GMC Sierra 2500 HD; 2020-2026 GMC Sierra 3500 HD)

Part of: Flowmaster Flow FX Cat-Back Exhaust System

Other options in this family: Flowmaster 717930 Flowmaster 718190 Flowmaster 718174 Flowmaster 718195 Flowmaster 717869

Manufacturer

Picture for manufacturer Flowmaster

Part Number

717927
7 reviews
Sale Price

$749.95

1 left at this price

delivery box

Usually delivered within 2 days

free shipping

FREE SHIPPING

Check out with

ApplePay
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 717927 Flow FX Cat-Back Exhaust System delivers enhanced performance and an aggressive exhaust note without compromising daily drivability. Engineered with Flowmaster's Flow FX muffler technology, this system eliminates interior drone while providing a deep, throaty tone that ranges from aggressive to moderate depending on throttle input.

Performance Gains:

  • Maximum increases of up to 11 horsepower and 10 lb-ft of torque over stock exhaust at the wheels
  • 3.5-inch mandrel-bent 16-gauge 409 stainless steel tubing maximizes exhaust flow and scavenging
  • Improved throttle response and reduced backpressure throughout the RPM range

Quality Construction:

  • 409 stainless steel construction for excellent corrosion resistance and durability
  • Mandrel-bent tubing maintains consistent diameter throughout bends for optimal flow
  • Factory-styled hangers mount in stock locations for perfect fitment
  • Complete hardware kit included for straightforward bolt-on installation

Sound Profile:

  • Tuned Flow FX muffler provides deep, aggressive tone under acceleration
  • Moderate cruising sound for comfortable highway driving
  • Drone-free design eliminates annoying interior resonance

This cat-back system maintains your factory warranty and is backed by Flowmaster's Lifetime Limited Warranty. Professional installation recommended for best results.

Products specifications

Fits

2020-2026 Chevrolet Silverado 2500 HD; 2020-2026 Chevrolet Silverado 3500 HD; 2020-2026 GMC Sierra 2500 HD; 2020-2026 GMC Sierra 3500 HD

Brand

Flowmaster

Prop 65

Yes

California Proposition 65 Chemical Name

Chromium (hexavalent compounds)

California Proposition 65 Chemical Name

Nickel (Metallic)

Catalytic Converter Included

No

Catalytic Converter Quantity

0

Category

Exhaust

Choose Your Part

Exhaust System

Clamping Type

Flat Band

Clamps Included

Yes

Drive

2WD

Drive

4WD

Emission Code

5

Exhaust Series

FlowFX

Exhaust Tip Color

Black

Exhaust Tip Connection

Clamp-On

Exhaust Tip Cut

Angled

Exhaust Tip Edge

Rolled Edge Angle Cut

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

Heat Shield Included

No

Inlet Type

Flanged

Mount Type

Uses Factory Hanger

Mounting Bracket Included

No

Muffler Body Material

409 Stainless Steel

Muffler Body Shape

Oval

Muffler Color

Natural

Muffler Finish

Natural

Muffler Flanged Inlet

No

Muffler Flanged Outlet

No

Muffler Included

Yes

Muffler Inlet Connection

Slip-Fit

Muffler Inlet Location

Center

Muffler Outlet Connection

Slip-Fit

Muffler Outlet Location

Center

Muffler Outlet Quantity

1

Muffler Quantity

1

Muffler Series

FlowFX

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 Quantity

1

Tail Pipe Tapered Outlet

No

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Paid for 2-day shipping but it took 4 days. I have not used the Simrad GPS yet so I cannot comment.

Easy to use

Decent priced tires.

part came within 1 day of purchase / undamaged , Would use again!

Easy process

Good product, good price and on time delivery.

Fantastic site and prices

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