Description
Overview
The Flowmaster Flow FX Cat-back Exhaust System is engineered for the 2011-2014 Dodge Charger R/T and Chrysler 300C equipped with the 5.7L Hemi engine. Built for drivers who want a bold, aggressive exterior tone paired with a moderate, livable interior sound level, this Flow FX system delivers the performance and quality you expect from Flowmaster—without the drone or fuss. It’s a complete cat-back setup designed to bolt on and transform both the sound and flow of your Hemi.
At the heart of the system is full stainless steel construction with dual 2.50-inch mandrel-bent tubing. The mandrel bends preserve a smooth, unrestricted path for exhaust gases, feeding into a Scavenger X-Pipe cross-over that maximizes exhaust scavenging. From there, gases flow into a pair of Flow FX “straight-through” mufflers engineered for maximum performance and a deep, aggressive note that comes alive under throttle while staying refined at cruise.
Key Benefits
Every detail is designed to work with your factory setup for a clean, integrated result. The mandrel-bent tailpipes utilize the factory hangers and exit within the factory exhaust bezels, giving your Charger or 300C a stealthy, OEM-style appearance with serious performance underneath. The silver-finished mufflers and pipes look right at home under the vehicle, and with no tip logo, the aesthetic stays subtle and clean.
- Full stainless steel construction for lasting durability
- Dual 2.50-inch mandrel-bent tubing for smooth, unrestricted flow
- Scavenger X-Pipe cross-over for maximum exhaust scavenging
- Flow FX straight-through mufflers deliver a deep, aggressive tone
- Aggressive exterior sound with a moderate interior sound level
- Dual tailpipes exit within factory exhaust bezels for a stealthy look
- Mounts using factory hangers—no cutting or custom fabrication
- CARB (California) compliant, Emission Code 5
Sound Profile
The Flow FX series strikes the balance many Hemi owners are after: an aggressive, attention-grabbing exterior note that lets everyone know your 5.7L means business, matched with a moderate cabin sound level that keeps long drives comfortable. It’s an ideal upgrade for those who want more presence without an overbearing interior drone.
Fitment & Installation
This cat-back system is designed specifically for the 2011-2014 Dodge Charger R/T and Chrysler 300C with the 5.7L Hemi engine. It uses the factory hangers and includes all necessary parts, hardware, and detailed instructions for a straightforward at-home installation. The 20.00-inch mufflers feature an offset inlet and 2.50-inch center outlet, with muffler and pipes included in the kit.
Backed by Flowmaster’s Lifetime Limited Warranty, the Flow FX Cat-back system protects your investment and delivers dependable performance mile after mile.








