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Flowmaster

Flowmaster 717857 FlowFX Cat-Back Exhaust Kit 3 Inch 409 Stainless Steel 4.5 Inch Black Ceramic Stainless Steel Tips Compatible with 2014-2019 Classic Body Chevy Silverado GMC Sierra 1500 4.3L 5.3L

  • Based on 66 reviews
Condition: New
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Availability: In Stock.
Fulfilled by Amazon
Arrives Thursday, Jun 25
Order within 15 hours and 42 minutes
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Features

  • Large 4.50-inch Stainless Steel Black Ceramic Coated Tip
  • Deep Powerful Tone Inside and Outside the Vehicle
  • Flow FX "Straight-through" Performance Muffler
  • Uses the Factory Hanger Locations
  • Full Stainless Steel Construction
  • Lifetime Limited Warranty
  • Easy Installation

Description

Flowmaster 717857 Flowmaster FlowFX Cat-Back Exhaust System. Exhaust System Kit 14-18 SILVERADO/SIERRA 1500 5.3L CB S

Color: Multicolor


Brand: Flowmaster


Material: Plastic


Vehicle Service Type: Truck


Installation Type: Bolt-On


Brand Name: Flowmaster


Manufacturer Part Number: 717857


Manufacturer: Flowmaster


UPC: 700042039173


Global Trade Identification Number: 73


OEM Equivalent Part Number: 717857


Part Interchange Info: 717857


Model Number: 717857


Unit Count: 1.0 Count


Manufacturer Warranty Description: Warranty


Item Weight: 47.4 Pounds


Included Components: Flowmaster 717857 Flowmaster FlowFX Cat-Back Exhaust System. Exhaust System Kit 14-18 SILVERADO/SIERRA 1500 5.3L CB S


Item Type Name: Flowmaster 717857 Flowmaster FlowFX Cat-Back Exhaust System. Exhaust System Kit 14-18 SILVERADO/SIERRA 1500 5.3L CB S


Compatible with Vehicle Type: Truck


Installation Type: Bolt-On


Automotive Fit Type: Vehicle Specific Fit


Color: Multicolor


Material Type: Plastic


Finish Type: Powder Coated


Frequently asked questions

If you place your order now, the estimated arrival date for this product is: Thursday, Jun 25

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.

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Learn more about financing & leasing here.

Similar Products

Top Amazon Reviews

    • Toned exhaust without the raspy and annoying sound. Toned exhaust without the raspy and annoying sound.
Review Image by Tom gumola 2
Review Image by Tom gumola 2
2014 GMC Sierra 5.3L. Exhaust system was very easy to install but make sure you purchase the band clamp because it is not included. The Exhaust sounds amazing! It's not too loud but you can definitely hear it. I have an S&B cold air intake and the combo sounds amazing together. I can definitely feel the HP gain. I highly recommend. ... show more
Reviewed in the United States on May 19, 2026 Reviewed in the United States on May 19, 2026 by Tom gumola 2
    • High quality, easy install, and great sound!
Installed this on my 2017 Chevy Silverado 1500 Z71. Once the old exhaust is removed (which is fairly easy), fully installing this kit took about 15-20 minutes. Very high quality parts, perfect it, looks great and sounds perfect. The volume is just slightly louder than stock, and sounds amazing. Great deep rumble, sounds like a truck. If you are looking for a loud system, this isn't for you. If you're like me and want to keep it quiter, but still actually hear that V8 sing, this is perfect. ... show more
Reviewed in the United States on May 30, 2025 by Sarah Williams
    • Flowmaster and it's perfect in the cab Flowmaster and it's perfect in the cab
Review Image by Neal M.
So I ordered this because it was an open box and I had a small problem when it arrived. I didn't get any clamps with it and the one I got from the local dealer was $54.00. That was frustrating but stuff happens. I would highly recommend this cat back system if you want good sound and freer flowing exhaust. The best part is at freeway speed you can still talk like a normal person and it's got an outstanding finish. If you have ever bought something that had a good price and were disappointed I don't think this will be a problem. the fit and finish is definitely 5 star. the sound is outstanding and again 5 star. if the clamps were in the box the whole thing would be perfect. ... show more
Reviewed in the United States on March 5, 2020 Reviewed in the United States on March 5, 2020 by Neal M.
    • 2017 Crew Cab Z71
I installed this on my 2017 crew cab z71. I bought this based on the American trucks YouTube install video, the video does the sound no justice at all. It is certainly a lot louder than I was expecting based on this video. It has a very nice deep rumble. On Flow masters sound scale it is in the upper 50% of their muffler line up on the sound side. Highly recommend. It took me 40 mins by myself with out a lift to install. I used a cutting wheel and made one cut behind the stock muffler and using the exhaust Ha he pliers it was easy to take the stock exhaust out. ... show more
Reviewed in the United States on May 24, 2020 by sean katz
    • Some good, some bad
I purchased this system to replace the OEM system on my 2015 Silverado which had rusted through and was leaking. The install was easy and the quality of the parts seemed good. I like the sound but it is just a tick louder than I hoped, especially when towing. Definitely get yourself a new exhaust clamp since the old one was rusted on and had to be cut off. My complaints are that the pipes are showing surface rust after only three months of use, and the coating on the exhaust tip seems to be fading and falling off in spots. This was about half the price of some higher end cat back systems and maybe the longevity of the parts is the reason for that. ... show more
Reviewed in the United States on February 25, 2024 by Matt
    • Great system.
Sounds great and was a very easy install on my 2014 Silverado. If you are going to install, check the stock V band clamp where the pipe hooks up after the cat because it needs reused. Mine was rusted so bad I just bought a new one for less than $15 at the local parts store. My original tailpipe was rusted and fell off, so I didn’t have to worry about it, and the full install with removing the old and putting the new on took maybe 30-45 minutes with 2 people. ... show more
Reviewed in the United States on November 14, 2019 by Michael
    • Great buy!
So glad I decided to go with this exhaust! It made my truck sound like a truck now! It took an hour to take out my factory 2017 Silverado 1500 exhaust out (which I cut behind the axle because I was laying on the ground installing it) and install the new flowmaster system. Just make sure you buy a new clamp off the catalytic converter to connect the new pipe. Mine was completely rusted and wouldn't break loose so I had to cut it off and replace it, it was $17 at my local hardware store. It's also a great look. ... show more
Reviewed in the United States on December 30, 2019 by Reader
    • 2014 GMC High Country exhaust system
This item fit just as it was advertised. Removal of old system took more time than the new installation. I did buy the inlet clamp as mine turned out to be rusted which was also mentioned in other reviews to be aware of. Great exhaust system!
Reviewed in the United States on July 16, 2025 by Wayne Kneebone

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