Description
Upgrade your 2009-2013 GM Silverado or Sierra 1500 5.3L with the Flowmaster Flow FX Cat-Back Exhaust System, designed for aggressive performance and a deep, rich tone. Constructed with durable 16-gauge 409 stainless steel, this system features 3.0-inch main pipes reducing to dual 2.50-inch mandrel-bent tubing for improved exhaust gas flow and performance.
The Flow FX straight-through muffler delivers a bold, aggressive sound while optimizing flow and horsepower gains of up to 10 hp and 11 lb-ft over stock. Dual 4.0-inch black ceramic-coated stainless steel tips with the Flowmaster logo exit in front of the rear tires, giving your truck a custom, aggressive look.
This bolt-on system uses all factory hanger locations, includes complete hardware and installation instructions, and is backed by Flowmaster’s lifetime limited warranty for long-lasting reliability.
Key Features
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Aggressive Flow FX muffler for deep, rich performance tone
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3.0-inch to dual 2.5-inch mandrel bent 16-gauge 409 stainless steel tubing
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Dual 4.0-inch black ceramic-coated stainless steel tips with Flowmaster logo
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Increases up to 10 hp and 11 lb-ft torque at the rear wheels
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Slip-fit connections for easy installation
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Uses all factory hanger locations
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Side exit configuration in front of the rear tires for a custom look
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Includes all hardware and installation instructions
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Backed by Flowmaster Lifetime Limited Warranty
Specifications
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Muffler Series: Flow FX
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Muffler Type: Absorption, Straight-Through
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Muffler Body Material: 409 Stainless Steel
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Muffler Body Size: 18.00” L x 9.00” W x 4.00” H
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Inlet Diameter: 3.00 IN
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Inlet Outside Diameter: 3.50 IN
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Inlet Location: Center
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Outlet Diameter: 2.50 IN
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Outlet Location: Dual Side
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Tail Pipe Quantity: 2
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Tail Pipe Outlet Diameter: 2.50 IN
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Tail Pipe Tip: Dual 4.0” Black Ceramic-Coated Stainless Steel
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Tip Logo: Laser
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Pipe Material: 409 Stainless Steel
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Main Piping Diameter: 2.50 / 3.0 IN
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Sound Level: Aggressive
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Fitment: 2009-2013 GM Silverado/Sierra 1500 5.3L
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Cat-Back Type: Dual Side Exit
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Installation: Factory Hanger Locations, Slip-Fit Connections
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Product Type: Exhaust System