Description
Overview
The Flowmaster Flow FX Extreme Cat-Back Exhaust System is engineered for the 2007-2018 Jeep Wrangler JK equipped with the 3.6L or 3.8L engine. Built to deliver a deep, powerful tone and improved exhaust flow, this stainless steel cat-back system brings the aggressive sound and rugged performance that Flowmaster is known for, all while using factory mounting locations for a straightforward, bolt-on installation.
At the heart of the system is a Flow FX series muffler, tuned to produce an aggressive exhaust note that lets your Wrangler’s engine breathe and be heard. The muffler features a center inlet and center outlet with a 3.00-inch outlet diameter and an overall length of 25.20 inches, working in harmony with the mandrel-bent tubing to maximize flow.
Built for Extreme Off-Road
What sets the Flow FX Extreme apart is its purpose-built off-road design. The system uses a turndown-style dump exit positioned right after the muffler, eliminating the over-axle tailpipe entirely. Removing the tailpipe improves ground clearance and departure angle, giving you a real advantage when the trail gets technical and the terrain gets extreme.
Constructed from 3.0-inch mandrel-bent 409 stainless steel tubing, this system is designed for maximum exhaust flow and long-term durability against the elements. The silver-finished piping and silver muffler give it a clean, purposeful look under your Jeep. Every system uses factory hanger locations, so there’s no cutting or fabrication required for a proper fit.
Key Highlights
- Purpose-built for the 2007-2018 Jeep Wrangler JK with 3.6L/3.8L engines
- 3.0-inch mandrel-bent 409 stainless steel tubing for maximum flow and durability
- Flow FX series muffler delivers a deep, aggressive sound with increased performance
- Turndown-style dump exit eliminates the over-axle tailpipe for better ground clearance and departure angle
- Center inlet / center outlet muffler with a 3.00-inch outlet, measuring 25.20 inches overall
- Single tailpipe configuration with silver pipe and muffler finish
Easy Installation & Fitment
Flowmaster designed the Flow FX Extreme to make upgrading simple. All necessary hardware is included, and the system mounts using factory hanger locations for an easy, direct-fit installation. This is a complete cat-back kit that includes the muffler, so you get everything needed to replace your exhaust from the catalytic converter back.
This system is CARB (California) compliant, carries an Emission Code of 5, and includes a California Proposition 65 warning. Backed by Flowmaster’s Lifetime Limited Warranty, the Flow FX Extreme cat-back is a confident, performance-driven upgrade for JK owners who want a better sound, improved flow, and the added clearance that serious off-roading demands.
