Description
The Flowmaster Flow FX Cat-Back Exhaust System is designed to enhance both performance and sound on 2014–2024 RAM 2500 and 3500 trucks equipped with the 6.4L V8 engine. Built from durable 409 stainless steel, this system features large 3.50-inch mandrel-bent piping for improved exhaust flow and a Flow FX straight-through muffler that delivers a deep, moderate performance tone. Dyno testing showed gains of up to 13 horsepower and 15 lb-ft of torque at the rear wheels, giving your truck noticeable improvements in throttle response and overall power.
This system exits behind the rear wheel with a bold 5.00-inch black ceramic-coated tip that adds an aggressive custom look. Installation is simple, using the existing factory hanger locations, and includes all required hardware and detailed instructions. Backed by Flowmaster’s Lifetime Limited Warranty for long-term confidence and durability.
Features
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Gains of up to 13 hp and 15 lb-ft at the rear wheels
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3.50-inch mandrel-bent 409 stainless steel tubing for maximum flow
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Flow FX straight-through muffler for a deep, moderate performance tone
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5.00-inch black ceramic-coated tip for a custom appearance
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Complete hardware and factory-style hangers for easy installation
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Lifetime Limited Warranty
Fitment
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2014–2024 RAM 2500 6.4L V8
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2014–2024 RAM 3500 6.4L V8
This Flowmaster Flow FX system delivers the perfect combination of improved performance, a refined exhaust tone, and durable construction—making it a premium upgrade for any RAM 6.4L owner seeking both sound and strength.
