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Flowmaster

Flowmaster 717894 FlowFX Cat-Back Exhaust Kit 3 Inch to 2.5 Inch 409 Stainless Steel Compatible with 2019-2024 New Body Chevy Silverado GMC Sierra 1500 Crew Cab/Double Cab 5.3L Dual Exhaust

  • Based on 33 reviews
Condition: New
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Availability: Only 2 left in stock, order soon!
Fulfilled by Street Series
Arrives Saturday, Oct 4
Order within 14 hours and 55 minutes
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Features

  • Deep Powerful Tone Inside and Outside the Vehicle
  • Max Dyno Gains of 21 hp and 26 lb.ft. of Torque
  • FlowFX "Straight-through" Performance Muffler
  • Exits Through the Factory Exhaust Bezels
  • All Mandrel-bent Stainless Steel Tubing

Description

Flowmaster 717894 FlowFX Cat-Back Exhaust System Dual Out Rear Exit Incl. 2.5 in. Tubing/Straight Through Mufflers 409 Stainless Steel FlowFX Cat-Back Exhaust System

Item Package Dimensions L x W x H: ‎55 x 25 x 12 inches


Package Weight: ‎28.58 Kilograms


Item Dimensions LxWxH: ‎55 x 25.1 x 12 inches


Item Weight: ‎54.6 Pounds


Brand Name: ‎Flowmaster


Warranty Description: ‎Warranty


Model Name: ‎Flowmaster 717894 FlowFX Cat-Back Exhaust System Dual Out Rear Exit Incl. 2.5 in. Tubing/Straight Through Mufflers 409 Stainless Steel FlowFX Cat-Back Exhaust System


Color: ‎No Color


Material: ‎Plastic


Suggested Users: ‎unisex-adult


Number of Items: ‎1


Manufacturer: ‎Flowmaster


Part Number: ‎717894


Included Components: ‎Flowmaster 717894 FlowFX Cat-Back Exhaust System Dual Out Rear Exit Incl. 2.5 in. Tubing/Straight Through Mufflers 409 Stainless Steel FlowFX Cat-Back Exhaust System


Size: ‎No Size


Date First Available: January 11, 2019


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Saturday, Oct 4

Yes, absolutely! You may return this product for a full refund within 30 days of receiving it.

To initiate a return, please visit our Returns Center.

View our full returns policy here.

  • Klarna Financing
  • Affirm Pay in 4
  • Affirm Financing
  • Afterpay Financing
  • PayTomorrow Financing
  • Financing through Apple Pay
Leasing options through Acima may also be available during checkout.

Learn more about financing & leasing here.

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Top Amazon Reviews

    • Easy install, love the deep tone
Easy install. Took me about 1 1/2 hours to remove the factory exhaust and install this bad boy at home. Love the deep tone and I notice a slight improvement in MPGs (nothing crazy about 1-2mpg) as well as performance.
Reviewed in the United States on July 3, 2025 by Adrian Ramirez
    • Good sound
First the good, it sounds great, nice deep tone. Not too loud, if you're looking to upset people, this isn’t the kit for you. It does install pretty easily, I did it on the floor in a few hours. The bad, the box came destroyed. A couple pipes I had to work on so they would slip together. Luckily nothing was damaged beyond repair or lost. Overall I’m pretty happy with it, but I do wish it was a little louder. ... show more
Reviewed in the United States on July 1, 2025 by Nate Herendeen
    • Sounds awesome.
Just the sound I was looking for.
Reviewed in the United States on June 18, 2024 by Steve Wilson
    • Amazing sound easy install
Me and my dad replaced the OEM in less than 4 hours, easy instructions and easy fit, I'm not mechanically inclined, so if you are even a little bit this will be easy. It sounds freakin amazing! Not too loud or overpowering when idle just a nice low growl, but when you open it up, it grottles beautifully. Love it. ... show more
Reviewed in the United States on December 15, 2019 by jacob
    • Well worth it!
Easy to install. It took me about 1.5 hours on my garage floor by myself. It gives off a nice deep tone with no noticeable drone. It was the perfect compliment to make my new truck sound like a truck! I shopped many exhaust systems... I’m glad I chose this! 2020 Silverado 5.3
Reviewed in the United States on April 22, 2020 by Amazon Customer
    • Can not go wrong with this kit.
Easy to install about less than an hour. Sounds good inside the cab and outside. Definitely lets you know you have a V8 compared to the stock exhaust. You can feel the power response when towing and hauling.
Reviewed in the United States on March 20, 2021 by Jeff Craft
    • Already Rusted Through
i bought mine in Nov of 2019 and i live in Los Angeles (no snow here). The exhaust has already rusted and broken at the dual exhaust exit on the muffler itself... not quite the quality i was hoping for. Unless Flowmater will warranty it... it will be a waste of $550.
Reviewed in the United States on February 28, 2022 by Allen
    • Very pleased
Sounds great, not too loud but sounds aggressive. It is well made and easy to install. It took about an hour and a half working at home in the garage.
Reviewed in the United States on January 18, 2021 by S. Lee

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