

Flowmaster 717857 FlowFX Cat-Back Exhaust System
Key item features
- Exhaust Tip: Features a large 4.50-inch diameter, black ceramic coated 304S stainless steel tip for a custom aesthetic.
- Acoustic Profile: Delivers a deep, powerful tone both inside and outside the vehicle, enhancing the driving experience.
- Muffler Design: Incorporates a FlowFX "straight-through" performance muffler for optimal sound and maximum performance.
- Material Construction: Constructed entirely from 409S stainless steel for long-lasting durability and trouble-free service.
- Installation Ease: Designed for easy installation, utilizing factory hanger locations and connections, and includes all necessary hardware.
- System Dimensions: Includes a 3.00-inch inlet pipe and a single 3.00-inch mandrel-bent tailpipe exiting behind the rear passenger side tire.
- Vehicle Compatibility: Compatible with 2014-2019* (*Classic body only) GM Silverado/Sierra 1500 4.3L & 5.3L engines, fitting 2/4 wheel drive models with 143.5 and 153-inch wheelbases.
Specs
- Vehicle makeGM
- Vehicle modelSilverado, Sierra
- Inlet diameter3.00 in
- Muffler typeStraight-Through Mufflers
- Material409S Stainless Steel
- Vehicle fitment typeSpecific
- Free shipping
Free 30-day returns
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About this item
Product details
Introducing the new FlowFX® Cat-back exhaust system for 2014-2019*(*Classic body 5.3L, 4wd w/143.5 in. wb) GM Silverado/Sierra 4.3L and 5.3L engines. This performance exhaust system fits both 2/4 Wheel drive models with 143.5 and 153 in. wheelbases and is manufactured from 409S stainless steel for years of trouble-free service. Features include 3.00 in. inlet pipe leading into a FlowFX straight-through muffler for great sound and maximum performance. The single 3.00 in. mandrel-bent tailpipe exits out behind the rear passenger side tire and is finished off with large 4.50 in. diameter black ceramic coated 304S stainless steel tip, giving your Silverado/Sierra that custom look that goes hand in hand with the deep performance sound of the FlowFX muffler. The system uses all the factory hanger locations and connections for an easy installation that you can do at home. Includes installation instructions and all necessary hardware.;
- Large 4.50-inch Stainless Steel Black Ceramic Coated Tip
- Deep Powerful Tone Inside and Outside the Vehicle
- FlowFX "Straight-through" Performance Muffler
- Uses the Factory Hanger Locations
- Full Stainless Steel Construction
- Lifetime Limited Warranty
- Easy Installation
Specifications
Vehicle make
Vehicle model
Inlet diameter
Outlet diameter
Warranty
Warranty information
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Customer ratings & reviews
Filtered and sorted results would be available on the new 'Customer ratings & reviews' page.
Showing 1-2 of 2 reviews
Fit perfectly sounds great
Me and my 8 year old son installed this in about 1.5 hours in our driveway. The hardest part was getting the exhaust out of the hangars. All the new pipes fit the factory hangars and fit over the rear axle nicely. The sound was aggressive but not too loud or annoying.
Not a bad sound for the price
First of all, fit and finish are gtg. This is truly plug and play, and installation was a breeze. Now, sound quality is another story. When you get into it, @2800+rpm it sounds pretty awesome! Not gonna lie, but... easy going around town, it drones a little between 1400 and 2100rpm. Kinda makes it sound like an old beater your grandpa used to drive. Personally, I prefer the hollow sound from the 40 series, I had a Super 44 in an older truck and absolutely loved it, 0-9000! That said, the FlowX muffler sounds pretty doggone good when you put your foot in it! ... and it's not too loud when you don't want to be loud. I give it 5 stars Installed on a '15 Chevy Silverado, 325ci
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