Description
The Flowmaster Flow FX Extreme® Cat-Back Exhaust System is designed for 2019*-2026 (*2019 New Body Only) Chevrolet Silverado 1500 and GMC Sierra 1500 trucks with the 5.3L engine. This high-performance exhaust system combines Flow FX technology with a durable 409 stainless steel design to deliver aggressive to moderate sound levels and improved performance.
The 3.00-inch mandrel-bent stainless steel tubing ensures maximum exhaust flow, while the Flow FX series muffler provides a deep, aggressive tone without excessive interior resonance. The unique dump-style exit eliminates the over-axle tailpipe, improving ground clearance and departure angle for off-road conditions. This system has been dyno-tested to produce up to 15 horsepower and 20 lb-ft of torque gains at the rear wheels. Installation is easy using all factory hanger locations, with all necessary hardware included. Backed by Flowmaster’s Lifetime Limited Warranty, the Flow FX Extreme system is a durable, high-performance upgrade for Silverado and Sierra owners seeking sound, style, and performance.
Key Features
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Flow FX series performance muffler for aggressive to moderate sound
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409 stainless steel construction for long-lasting durability
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3.00-inch mandrel-bent tubing for maximum exhaust flow and power
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Dump-style exit improves ground clearance and departure angle for off-road use
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Dyno-tested gains: up to 15 hp and 20 lb-ft torque at the rear wheels
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Uses factory hanger locations for easy bolt-on installation
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All necessary hardware included for home installation
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Lifetime Limited Warranty
Fitment
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Year: 2019*-2026 (*2019 New Body Only)
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Make: Chevrolet / GMC
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Model: Silverado 1500 / Sierra 1500
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Engine: 5.3L V8
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Cab/Bed Configurations: All standard models except non-New Body pre-2019
Specifications
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Brand: Flowmaster
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Category: Exhaust
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Sub Category: Exhaust and Tail Pipes
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Product Type: Exhaust System
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Part Type: Cat-Back Exhaust
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Muffler Series: Flow FX
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Muffler Type: Absorption
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Muffler Body Diameter: 6.00 IN
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Muffler Body Length: 14.00 IN
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Muffler Body Material: 409 Stainless Steel
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Muffler Body Shape: Round
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Muffler Finish: Natural
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Sound Level: Aggressive
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Main Piping Diameter: 3.00 IN
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Pipe Material: 409 Stainless Steel
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Tip Diameter: 3.00 IN
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Tip Finish: Natural
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Tip Shape: Round
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Exit Style: Single Out Dump
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Hangers Included: Yes
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Mount Type: Uses Factory Hangers
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CARB Compliant: Yes
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California Proposition 65: Yes (Chromium hexavalent compounds)
