Flowmaster flo717976 Flow FX Extreme 3-Inch Stainless Steel Cat-Back Exhaust System

Flowmaster introduces our Flow FX Extreme stainless steel cat-back exhaust system for the 2014-2019 Chevrolet/GMC Silverado/Sierra 1500 with the 4.3 or 5.3-liter engine. This system uses a Flow FX series muffler for an aggressive to moderate sound level and increased performance. 3.0-inch mandrel bent 409 stainless steel tubing allows for maximum exhaust flow and durability. The system has a turndown style, dump exit right after the muffler to eliminate the over-axle tailpipe. This elimination of the tailpipe helps improve ground clearance and departure angle when you are driving in more extreme off-road situations. This system produced max dyno gains of 11 hp and 15 lb-ft at the rear wheels. All of the necessary hardware is included, and factory-mounting locations are used for an easy installation. Backed by Flowmaster's Lifetime Limited Warranty. Fits 2014-2019 Chevrolet/GMC Silverado/Sierra 1500 4.3L/5.3L, Flow FX Extreme 3.00-inch Stainless Steel Cat-Back Exhaust System

• 3.00-inch 16-gauge mandrel bent stainless steel tubing helps maintain maximum exhaust flow for better power
• Flow FX Series performance muffler offers an aggressive to moderate sound level and increased performance
• 409 stainless steel construction delivers extra durability and improved long-term corrosion resistance
• Dump style exit allows for better ground clearance when in extreme off-road conditions
• Includes all necessary hardware for an at home installation
• Max dyno gains of 11 hp and 15 lb-ft at the rear wheels
• Uses factory hanger locations for easy installation
• Lifetime Limited Warranty

The Flowmaster Flow FX Extreme stainless steel cat-back exhaust system is designed for 2014–2019 Chevrolet Silverado 1500 and GMC Sierra 1500 models equipped with 4.3L or 5.3L engines. It uses a Flow FX Series performance muffler to provide an aggressive to moderate sound level while supporting increased exhaust performance.

The system features 3-inch, 16-gauge mandrel-bent 409 stainless steel tubing to help maintain exhaust flow, durability, and long-term corrosion resistance. Its turndown-style exit dumps immediately after the muffler, eliminating the over-axle tailpipe for improved ground clearance and departure angle during extreme off-road driving. Testing produced maximum dyno gains of 11 horsepower and 15 lb-ft at the rear wheels.

Factory hanger locations support installation, and all necessary hardware is included for an at-home installation. The system is backed by Flowmaster's Lifetime Limited Warranty.

Key Features & Performance Benefits

• Mandrel-Bent Tubing: 3-inch, 16-gauge tubing helps maintain maximum exhaust flow for better power.
• Flow FX Series Muffler: Delivers an aggressive to moderate sound level and increased performance.
• 409 Stainless Steel Construction: Provides durability and improved long-term corrosion resistance.
• Turndown-Style Exit: Eliminates the over-axle tailpipe for improved ground clearance in extreme off-road conditions.

Key Product Specifications & Technical Data

• Brand: Flowmaster
• Part Number: flo717976
• System Type: Cat-back exhaust system
• Tubing Diameter: 3.00 inches
• Tubing Material: 409 stainless steel
• Muffler: Flow FX Series performance muffler
• Exit Style: Turndown dump exit after the muffler
• Maximum Dyno Gains: 11 hp and 15 lb-ft at the rear wheels

What's Included

The exhaust system and all necessary installation hardware are included. Factory hanger locations are used for installation.

Fitment

Fits 2014–2019 Chevrolet Silverado 1500 and GMC Sierra 1500 models with 4.3L or 5.3L engines.

Fitments:
2014 Chevrolet Silverado 1500 High Country
2014 Chevrolet Silverado 1500 LT
2014 Chevrolet Silverado 1500 LTZ
2014 Chevrolet Silverado 1500 WT
2014 GMC Sierra 1500 Base
2014 GMC Sierra 1500 Denali
2014 GMC Sierra 1500 SLE
2014 GMC Sierra 1500 SLT
2015 Chevrolet Silverado 1500 High Country
2015 Chevrolet Silverado 1500 LS
2015 Chevrolet Silverado 1500 LT
2015 Chevrolet Silverado 1500 LTZ
2015 Chevrolet Silverado 1500 SSV
2015 Chevrolet Silverado 1500 WT
2015 GMC Sierra 1500 Base
2015 GMC Sierra 1500 Denali
2015 GMC Sierra 1500 SLE
2015 GMC Sierra 1500 SLT
2016 Chevrolet Silverado 1500 Custom
2016 Chevrolet Silverado 1500 High Country
2016 Chevrolet Silverado 1500 LS
2016 Chevrolet Silverado 1500 LT
2016 Chevrolet Silverado 1500 LTZ
2016 Chevrolet Silverado 1500 SSV
2016 Chevrolet Silverado 1500 WT
2016 GMC Sierra 1500 Base
2016 GMC Sierra 1500 Denali
2016 GMC Sierra 1500 SLE
2016 GMC Sierra 1500 SLT
2017 Chevrolet Silverado 1500 Custom
2017 Chevrolet Silverado 1500 High Country
2017 Chevrolet Silverado 1500 LS
2017 Chevrolet Silverado 1500 LT
2017 Chevrolet Silverado 1500 LTZ
2017 Chevrolet Silverado 1500 SSV
2017 Chevrolet Silverado 1500 WT
2017 GMC Sierra 1500 Base
2017 GMC Sierra 1500 Denali
2017 GMC Sierra 1500 SLE
2017 GMC Sierra 1500 SLT
2018 Chevrolet Silverado 1500 Custom
2018 Chevrolet Silverado 1500 High Country
2018 Chevrolet Silverado 1500 LS
2018 Chevrolet Silverado 1500 LT
2018 Chevrolet Silverado 1500 LTZ
2018 Chevrolet Silverado 1500 SSV
2018 Chevrolet Silverado 1500 WT
2018 GMC Sierra 1500 Base
2018 GMC Sierra 1500 Denali
2018 GMC Sierra 1500 SLE
2018 GMC Sierra 1500 SLT
2019 Chevrolet Silverado 1500 LD Custom
2019 Chevrolet Silverado 1500 LD LT
2019 Chevrolet Silverado 1500 LD WT
2019 GMC Sierra 1500 Limited Base
2019 GMC Sierra 1500 Limited SLE

Air Freight Prohibited: false
Not Carb Approved: false
Carb Acknowledgement Required: true
Ltl Freight Required: false
Prop 65: Y
Part Type: automotive
Epa: N/A
Units Per Sku: 1
Regular Stock: t