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 717977 Flow FX Extreme Cat-Back Exhaust System Stainless Steel - 3 Inch

(2019-2026 Chevrolet Silverado 1500; 2022 Chevrolet Silverado 1500 LTD; 2019-2026 GMC Sierra 1500; 2022 GMC Sierra 1500 Limited)

Part of: Flowmaster Flow FX Extreme Cat-Back Exhaust System Stainless Steel

Other options in this family: Flowmaster 717976 Flowmaster 717973 Flowmaster 717971 Flowmaster 717969 Flowmaster 717984

Manufacturer

Picture for manufacturer Flowmaster

Part Number

717977
9 reviews
Sale Price

$399.95

3 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 Flow FX Extreme Cat-Back Exhaust System delivers aggressive sound and proven performance gains for off-road enthusiasts. This complete exhaust system features a dump-style exit designed specifically for maximum ground clearance in extreme off-road conditions, allowing you to tackle challenging terrain without worrying about exhaust damage.

Performance Features:

  • FlowFX Series performance muffler delivers aggressive to moderate exhaust tone with enhanced flow characteristics
  • Maximum dyno-tested gains of 15 horsepower and 20 lb-ft of torque at the rear wheels
  • 3-inch 16-gauge mandrel-bent tubing maintains consistent diameter for optimal exhaust velocity and power
  • Dump-style exit provides superior ground clearance for rock crawling and trail riding

Construction and Installation:

  • 409 stainless steel construction throughout for exceptional durability and corrosion resistance
  • Utilizes factory hanger locations for straightforward bolt-on installation
  • Includes all necessary hardware and components for complete at-home installation
  • Backed by Flowmaster's Lifetime Limited Warranty

This cat-back system replaces everything from behind the catalytic converter to the exhaust exit, providing a complete performance upgrade with professional quality and proven results.

Products specifications

Fits

2019-2026 Chevrolet Silverado 1500; 2022 Chevrolet Silverado 1500 LTD; 2019-2026 GMC Sierra 1500; 2022 GMC Sierra 1500 Limited

Inlet Inside Diameter

3.000 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

3.000 in.

Material

409 Stainless Steel

Exit Position

Rear

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

Silver

Exhaust Tip Connection

Welded

Exhaust Tip Cut

Straight

Exhaust Tip Edge

Slash Cut

Exhaust Tip Finish

Natural

Exhaust Tip Intercooled

No

Exhaust Tip Material

409 Stainless Steel

Exhaust Tip Quantity

1

Exhaust Tip Resonated

No

Exhaust Tip Shape

Round

Exhaust Tip Wall

Single Wall

Exit Style

Single Out Dump

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

Round

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 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

Aggressive

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 Style

Not Included

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Great service

Great price on a great product. Easy to buy on website, and fast shipping. Very happy with my purchase experience with thmotorsports.

Needed it fast and they delivered on time at the best price I could find.

Very pleased with the purchase and dealing with you / will continue on shopping with y'all

It was easy

Shipped quicker than expected and best price I could find and shipped free. Will order from them again

Talked to guy on chat before I ordered. Clint was very helpful!

The product was in stock as advertised and received promptly; as compared to other that advertise but do have the item available at all.

easy and cheap

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