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Flowmaster 717890 FlowFX Cat-Back Exhaust System

(2019-2023 Chevrolet Silverado 1500; 2022 Chevrolet Silverado 1500 LTD; 2019-2023 GMC Sierra 1500; 2022 GMC Sierra 1500 Limited AT4/Denali/SLT)

Part of: Flowmaster FlowFX Cat-Back Exhaust System

Other options in this family: Flowmaster 718187 Flowmaster 717892 Flowmaster 718170 Flowmaster 718165 Flowmaster 717939

Manufacturer

Picture for manufacturer Flowmaster

Part Number

717890
5 reviews
Sale Price

$849.95

In Stock (7)

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Usually delivered within 2 days

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Fitment guaranteed

Fitment guaranteed

Product Details

The Flowmaster 717890 FlowFX Cat-Back Exhaust System delivers a significant performance upgrade with a moderate exhaust tone that's perfect for daily driving. This complete bolt-on system is engineered to maximize horsepower and torque while maintaining a refined sound profile.

Performance Benefits:

  • Delivers up to 26 horsepower and 39 lb-ft of torque gains over stock exhaust at the rear wheels
  • FlowFX straight-through muffler design improves exhaust flow while producing a deep, moderate performance tone
  • Mandrel-bent 3.5-inch and 2.5-inch tubing eliminates restrictions and maximizes exhaust velocity

Quality Construction:

  • Manufactured from 16-gauge 409 stainless steel for superior corrosion resistance and durability
  • Precision mandrel-bent tubing maintains consistent diameter throughout bends for optimal flow
  • Factory-styled hangers mount in stock locations for proper fitment and support

Installation and Appearance:

  • Complete hardware kit included for straightforward bolt-on installation
  • Connects directly to factory dual exhaust tips for a stealthy, OEM-plus appearance
  • No cutting or welding required for installation

This system is backed by Flowmaster's Lifetime Limited Warranty, ensuring long-term reliability and peace of mind. The FlowFX series is designed for enthusiasts who want noticeable performance gains without an overly aggressive exhaust note.

Products specifications

Fits

2019-2023 Chevrolet Silverado 1500; 2022 Chevrolet Silverado 1500 LTD; 2019-2023 GMC Sierra 1500; 2022 GMC Sierra 1500 Limited AT4/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 Connection

Clamp-On

Exhaust Tip Intercooled

No

Exhaust Tip Quantity

2

Exhaust Tip Shape

Round

Exit Style

Dual 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

2

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

2

Tail Pipe Quantity

Dual

Tail Pipe Tapered Outlet

No

Tip Style

Not Included

Type

Cat-Back

Valve Included

No

Valve Type

Not Applicable

Warning

California Proposition 65

Price was very reasonable. Original OEM product. Quick ship time. I was very pleased with Boatplicity and I will definitely purchase from them again.

Parts were easy to find and available

issue was corrected very fast and easy thank you matt

Muy bueno

Good product

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