The Flowmaster Flow FX Cat-Back Exhaust System, part number 717869, is designed for select 2014-2019 Chevrolet Silverado 1500 and GMC Sierra 1500 trucks equipped with the 5.3L engine. Built from durable 409 stainless steel, this performance exhaust uses a 3-inch inlet feeding a straight-through Flow FX muffler and dual 2.5-inch mandrel-bent tailpipes. The pipes exit at an angle behind the rear wheels to help direct exhaust away from boats or travel trailers when towing, and dual 4.5-inch black ceramic-coated stainless steel tips complete the system with an aggressive appearance.
Key Features & Specs:
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Series: Flowmaster Flow FX
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Type: Cat-back exhaust system
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Engine Compatibility: 5.3L
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Cab Compatibility: Crew Cab and Double Cab
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Wheelbase: 143.5-inch and 153-inch
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Drivetrain: 2WD and 4WD
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Material: 409 stainless steel
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Inlet Diameter: 3-inch
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Tailpipe Diameter: Dual 2.5-inch
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Tubing Construction: Mandrel-bent stainless steel
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Muffler: Flow FX Series
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Muffler Design: Straight-through absorption style
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Sound Level: Aggressive to moderate
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Exit Style: Dual side exit
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Exit Location: Angled behind the rear wheels
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Exhaust Tips: Dual 4.5-inch black ceramic-coated 304 stainless steel
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Tip Style: Angled, rolled-edge
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Towing-Friendly Routing: Side exits direct exhaust away from trailers
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Spare Tire Clearance: Clears the factory spare tire
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Installation: Uses factory hanger locations with an additional included hanger for the left tailpipe
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Included: Clamps, hangers, installation hardware, and instructions
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Part Number: 717869
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Warranty: Flowmaster Lifetime Limited Warranty
Fitment:
Fits applicable Crew Cab and Double Cab trucks with the 5.3L engine, 2WD or 4WD, and 143.5-inch or 153-inch wheelbase.
- 2014-2018 Chevrolet Silverado 1500
- 2019 Chevrolet Silverado 1500 LD
- 2014-2018 GMC Sierra 1500
- 2019 GMC Sierra 1500 Limited
2019 Fitment Note: 2019 applications are limited to the previous-generation Silverado 1500 LD and Sierra 1500 Limited / Classic-body applications listed by Flowmaster.