Description
Overview
The Flowmaster Jeep (3.6, 3.8) Exhaust System Kit brings the Outlaw Extreme cat-back exhaust system to the 2007-2018 Jeep Wrangler JK equipped with the 3.6L or 3.8L engine. Built for owners who want a deeper, more aggressive tone paired with increased flow, this performance exhaust replaces the restrictive factory setup with a purpose-engineered catback exhaust that bolts up using factory hangers for a straightforward installation.
At the heart of the system is an Outlaw series muffler, tuned to deliver a deep, powerful sound that announces your Jeep before it arrives. The muffler measures 23.60 inches overall with a center inlet and center outlet, and features a 3.00-inch outlet diameter to keep exhaust gases moving. Every part of this exhaust system is designed to work together as a complete kit, so you’re upgrading the entire car exhaust path from the cats back.
Materials & Construction
Flowmaster builds this exhaust with 3.0-inch mandrel-bent 409 stainless steel tubing for maximum exhaust flow and long-term durability. The mandrel bends preserve full diameter through every curve, helping the exhaust pipe breathe freely instead of choking flow at the bends. Both the muffler and the exhaust pipe carry a silver finish for a clean, consistent look under the vehicle.
Built for the Trail
What sets this Outlaw Extreme apart is its turndown-style dump exit positioned right after the muffler. By eliminating the over-axle tailpipe, the system improves ground clearance and departure angle — a real advantage when you’re pushing into more extreme off-road situations. The single tailpipe configuration keeps things simple while the turndown exit keeps hardware tucked up and out of harm’s way.
- Outlaw Extreme series stainless steel cat-back exhaust system for 2007-2018 Jeep Wrangler JK (3.6L / 3.8L)
- 3.0-inch mandrel-bent 409 stainless steel tubing for maximum flow and durability
- Outlaw series muffler with center inlet, center outlet, and 3.00-inch outlet diameter
- Turndown dump exit eliminates the over-axle tailpipe for improved ground clearance and departure angle
- Uses factory mounting locations and includes all necessary hardware for easy installation
- CARB (California) compliant — Emission Code 5
Fitment & Installation
Designed specifically for the 2007-2018 Jeep Wrangler JK with the 3.6L or 3.8L engine, the kit installs using the factory hangers and includes all necessary hardware. That means no cutting or fabricating for most installs — the system drops into the original mounting locations. Note that the exhaust tip is sold separately, letting you finish the look your way.
Whether you’re comparing options in a performance exhaust system upgrade or searching for the right catback exhaust for your Jeep, the Outlaw Extreme delivers aggressive sound, increased performance, and off-road-ready clearance in one complete kit. Backed by Flowmaster’s Lifetime Limited Warranty.
