Description
Overview
The Flowmaster Flow FX Cat-Back Exhaust System is engineered to upgrade the 2014-2024 RAM 2500 equipped with the 6.4-liter HEMI engine, delivering stronger flow, a more aggressive tone, and a custom look without the complexity of a shop install. Built as a complete cat-back kit, it replaces the restrictive factory piping from the catalytic converter back, opening up the exhaust path for better performance and a purposeful sound that lets your HEMI make itself heard.
Flowmaster manufactures this system from durable 409 stainless steel throughout, so it stands up to heat, road spray, and the demands of daily driving and towing. The pipes are mandrel bent and step from 3.50 inches down to 3.00 inches, preserving smooth bends and consistent diameter for improved exhaust gas flow from the muffler out to the tailpipes.
Real, Measured Gains
This isn’t just about sound. On the dyno, the Flow FX system produced maximum increases of 18 horsepower and 16 lb-ft of torque at the rear wheels over the stock exhaust, freeing up power your engine was already capable of. The result is a truck that feels more responsive while carrying a deep, aggressive-to-moderate exhaust note that stays refined enough for the highway.
Style and Sound
The system exits with dual 4.00-inch black stainless steel tips, adding a bold, finished look at the rear bumper with an embossed logo for a factory-plus appearance. Inside, the Flow FX muffler measures 24.00 inches overall with a center inlet and dual 3.00-inch outlets, feeding the dual tailpipe configuration that gives this RAM its aggressive stance and tone.
Easy At-Home Installation
Designed as a true bolt-on upgrade, the Flow FX cat-back uses all of the existing factory hanger locations, so there’s no cutting or fabrication required for a proper fit. Flowmaster includes detailed installation instructions and all necessary hardware, making this a straightforward project you can complete in your own garage.
- Fits 2014-2024 RAM 2500 trucks with the 6.4-liter HEMI engine
- Constructed from durable 409 stainless steel throughout
- 3.50 to 3.00-inch mandrel bent pipes for improved exhaust flow
- Dyno-proven gains of 18 hp and 16 lb-ft of torque at the rear wheels
- Dual 4.00-inch black stainless steel tips with embossed logo
- Aggressive/moderate sound level with a dual tailpipe exit
- Uses factory hanger locations; hardware and instructions included
- CARB (California) compliant
Warranty
Every Flow FX cat-back system is backed by Flowmaster’s Lifetime Limited Warranty, giving you confidence in the long-term durability of your upgrade. WARNING: This product can expose you to chemicals known to the State of California under Proposition 65.
