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Flowmaster Outlaw Extreme Cat-Back Exhaust (07-18 Jeep Wrangler JK)

Item J154542
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$375.95 (set)

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      Video Review & Installation

      Merideth: Hey, guys. So, today, we're checking out the Flowmaster Outlaw Cat-Back Exhaust System, fitting all 2007 to 2018 JK Wranglers. Now, this will be great for the JK owner looking to switch up the sound and the performance of their exhaust system, with an incredibly affordable option. Now, this is gonna open up that exhaust, increasing a little bit of performance and MPG, since you are relieving some of that restriction. And you're also going to, most importantly, get a deeper exhaust note with a decent amount of volume, perfect for the Jeep owner who likes to hear their exhaust when they get on it. Now, I'm gonna rate this a four out of five on the loudness meter, with one being completely stock, and five being wake-the-neighbors loud. Now, this won't necessarily be the loudest system when it comes to comparing it to other options in the category, but it definitely will be up there in volume, especially when you get on the pedal.Now, this is really going to change the tone of the exhaust, creating a deeper and more throaty noise out of the JK, while keeping the interior noise pretty minimal, especially when it comes to drone. Now, this will also be a high-clearance system, staying out of the way, considering it is a turn-down style exhaust, which will be great if you're concerned about your clearance while you're going off-road, and you don't necessarily care for the look of an upgraded exhaust. Now, when it comes to the construction, this will have a straight-through flow style muffler, giving you good airflow and minimal restriction. This will also be made of a 409 stainless steel build, with 3-inch mandrel-bent tubing, for smooth and direct airflow. Now, the 409 will hold up very well when it comes to the elements, and you're also going to get a nice black powder coat finish on the muffler and the tip here, which is going to up that rust resistance just that much more.Now, when it comes to price, this is gonna come in at roughly $350, again, making this a very affordable choice for a cat-back system. Now, in comparison to other choices on the page, this will be very simple and to the point, with a no-fuss design. Now, others on the page may include a different configuration, like a dual or single rear exit, that will offer more of a sporty look. However, they're not gonna be as high clearance as this choice if that's something that's important to you. Not to mention, some of the very pricey choices that you'll see in the category are usually made of a 304 stainless steel build, which is super high quality, as to where this is 409, a little bit lower quality on the seamless steel spectrum. But there you are saving a couple bucks, and it's still going to be solid when it comes to materials.Now, again, I think if you're not necessarily concerned about the look, you're just looking for more of an aggressive sound out of your JK, and some more clearance for the trail out of your exhaust, then this is going to be it. Now, install is going be a one out of three wrenches on the difficulty meter, probably taking you about an hour to get the job done with the right tools. Now, one of our installers here is gonna show you how to get that done step by step, so that's gonna wrap it up for my review. Let's go ahead and get into the install.Instructor: Tools required for this install include an impact gun, an extension, a 15 and 18-millimeter socket, an exhaust hanger removal tool, a pry bar, some penetrating lubricant for your hangers and clamps, and a floor jack or a pole jack.What's up, guys? Today, we're gonna be installing an exhaust on our Wrangler. So, our first step's gonna be to get this muffler out. So let's get right to it. So, to remove our muffler, we have one clamp right back here that has a 15-millimeter nut that we have to get off, as well as a hanger right here, and a hanger right here. So, we can get a 15-millimeter socket on an impact gun, loosen up this clamp. So now, starting on the passenger side, we can take an exhaust hanger remover tool, and pop this out of the hanger. And now, we can repeat that same process on the other side. All right, so now, we have a pole jack underneath the other side of our muffler to hold it into place. You could get a buddy and kind of hold it up. It'll make it easier to slide out of the hanger without it being at a downward angle. So, there's not really that much clearance for a exhaust hanger remover tool, so I'm gonna get in here with the pry bar.Now, with both of our hangers free, we can slide our muffler out. So now, coming back to about the middle of the Jeep, behind the skid plate, we have another clamp with a 15-millimeter nut that we have to remove, and our hanger. Now, I've gone ahead and sprayed these down with a penetrating lubricant as well, to make it easier to remove. So, now we can use a 15-millimeter socket to loosen this clamp. And there's not much clearance to get an exhaust hanger remover tool in here, so I'm gonna do a pry bar, and just kind of push it up. So now, moving back to our last hanger, it's gonna be right in front of the rear spring on the driver's side. So, we can get an exhaust hanger remover tool, and pop this hanger out. So now, to make the exhaust a little easier to get out, we can go ahead and loosen this bolt right here, drop this arm down a little bit, and get the clearance we need.So, now we can go ahead and install our midpipe onto our Jeep. So, we can take our 2.5-inch clamp, slide that over the top, and then slide our midpipe into place. Then we can slide our hanger in as well. So now, we have two hangers coming off of our midpipe. These are just gonna be for different model years. So use whichever one that it lines up with to your hanger, and then also, we don't have the typical balls on the end of our hangers. It's just flat. So we're gonna use one of these serrated washers to lock it into place. Now we can tighten down our clamp, using a 15-millimeter socket. All right, so now we can take our 3-inch clamp, slide that over the tip of our last piece, slide that over, and now we can slide this into our hanger. Now we can slide our serrated washer onto the back of this hanger as well. All right, so now we can go ahead and snug up our last clamp, with that 15-millimeter socket once again.Merideth: And that is going to wrap it up for my review and the install of the Flowmaster Outlaw Cat-Back Exhaust System, fitting all 2007 to 2018 JK Wranglers. For more videos and products just like this, remember to always keep it right here at

      Product Information

      Features, Description, Reviews, Q&A, Specs & Installation

      Features & Specs

      • Flowmaster Outlaw Extreme Cat-Back Exhaust
      • Aggressive Sound level
      • Dyno-Tuned for Maximum Performance
      • Race Proven Outlaw Muffler Technology
      • Cat-Back Exhaust System
      • Mandrel Bent 16 Gauge Stainless Steel Tubing
      • Durable 409 Stainless Steel Exhaust Tubing
      • Single Out Dump
      • Exhaust Tubing Diameter: 3-Inch
      • Durable 409 Stainless Steel Muffler Body
      • Muffler Inlet Diameter: 3-Inch
      • Muffler Outlet Diameter: 3-Inch
      • Muffler Body Length: 10.5-Inch
      • Muffler Overall Length: 23.6-Inch
      • Natural Brushed Finish Muffler Body
      • Muffler Body Shape: Round
      • Muffler Configuration: Centered - Centered
      • Muffler Type: Reflection
      • Tip Outlet Diameter: 3-Inch
      • Made in the USA
      • Fits All 2007-2018 Jeep Wrangler JK Models


      Excellent Performance. The Flowmaster Outlaw Extreme Cat-Back Exhaust system is possibly the best system yet. This exhaust system, unlike its competitors on the market, is Dyno Tuned For Maximum Performance with an aggressive sound level. A perfect blend of performance and loudness all in one system.

      High Build Quality. This exhaust system was built using durable 409 mandrel-bent stainless steel, thus having a lightweight yet strong structure. The muffler body is also made with the same high-quality material with a brushed aluminum finish. This product has been made with high performance as a top priority.

      Easy Installation. This kit bolts to the factory manifolds. No welding or cutting is required upon installation. All of the needed hardware is already included in the package.

      Application. This Flowmaster Outlaw Extreme Cat-Back Exhaust fits all 2007-2018 Jeep Wrangler JK models.


      Flowmaster 818110

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      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Cat-Back Exhaust System
      • Hardware

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