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Flowmaster Outlaw Axle-Back Exhaust with Black Tips (18-23 3.6L Jeep Wrangler JL)

Item J126473-JL
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$639.95 (kit)

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      Video Review & Installation

      Merideth: Hey, guys. So, today, we're checking out the Flowmaster Outlaw Axle-Back Exhaust System with the Black Tips, fitting all 2018 and newer JL Wranglers with the 3.6-liter V6 motor. Now, this is gonna be great for the JL owners looking to completely switch up the sound and the look of their JL's exhaust system. This will open up that exhaust, increasing a little bit of performance and MPG since you're relieving some of that restriction, and, of course, you are going to get a lot of sound out of this exhaust system. Now, what I will say is that you are going to get a deeper exhaust note without all of the crazy volume, which is gonna be perfect for the daily driver or somebody who wants to hear their exhaust but doesn't wanna go over the top. Now, I'm gonna rate this a four out of five on the loudness meter with one being completely stock and five being incredibly loud.Now, when it comes to the exhaust system mounted on a Jeep, this isn't going to be the loudest exhaust system, but when it comes to comparing it to others in the category, this is definitely going to be up there in volume, especially when you get on it. So, if you're a fan of hearing your exhaust system whenever you're driving your Jeep around, this is going to be a great choice. Now, this is also going to just change the note of the exhaust system, creating a deeper and more throaty noise out of the 3.6 while keeping the interior noise pretty minimal, especially when it comes to drones. So, if you're doing a whole lot of driving, this is going to keep that drone to a minimum and make it very comfortable inside of your Wrangler. Now, I would like to call out the fact that this will hang a little bit lower than some other exhaust systems.So, if you go off-road a lot, if you're doing a lot of articulation, if you're concerned about your departure angles, this is going to hang a little bit lower. So, I would just keep that in mind. But if you're not necessarily concerned about that, you really like the look of this and you're also really looking to open up that exhaust with a straight-through style exhaust system, something that's going to be a little bit louder than most, then this is gonna be right up your alley. And I especially like the fact that this gives you a very sleek look with that powder coat, which I'll get to in just a second. Now, diving a little bit deeper into the construction of this. This exhaust system is gonna have a straight-through style muffler. As you can tell, it is very small in comparison to your factory one which is big, it's baffled, and that's really where you're going to get that quietness of your factory exhaust system.With this, it is going to be baffled to make sure that you're not getting a lot of drone, but it is not going to hold back when it comes to sound. Now, this is also gonna be made of mainly a 409 stainless steel build. You are gonna have 2.5-inch mandrel bent tubing, which is very common on the exhaust system, not only on the factory one, but on aftermarket options, and this is also going to have a nice black powder coat finish on top. Now, the 409 stainless steel is gonna hold up very well to the elements, especially with this black powder coat on top. That is going to hold up for a very long time, especially if you take care of it. But it is going to save you a couple of bucks in comparison to 304.Now, these will have 304 stainless steel tips. So, those are going to last an incredibly long time and resist any rusting or corrosion on the stainless steel and also have that nice powder coat on top to protect the stainless steel underneath as well. So, really, overall, you're getting a good system here and you're not breaking the bank, especially because this has a 409 built. Not to mention, this is going to come with the hangers pre-installed and you also are going to get a clamp here and the little clips for the hangers to make sure that they stay on the isolators. So, overall, this is going to be a pretty solid build, in my opinion. Now, when it comes to price, this is gonna sit at roughly $600, making this a middle-of-the-road choice. And like I said, you're not necessarily going to break the bank because this is a 409 steel, great quality in comparison to something that is more or less an aluminized steel or steel like the factory one.So, this is going to hold up. It has a really good look to it, and it is going to give you that very large tip on the end here for that style. Now, other options available in the category may just be a little bit different. You may see choices that are going to be for high clearance exhaust, that will be more towards the off-roader instead of somebody who's looking for style. You are gonna see options for a single outlet that may switch it up, and you may see choices that are going to be a little bit more expensive that may not have the welded tips, they may have an option to pop the tip off and put it back on and kind of switch it up, or they may have that full 304 stainless build.Overall, I think if you're not looking to completely break the bank, you're looking for something that's stealthy, gonna give you a lot of noise, and is going to look good while doing it, then this is gonna be a great choice. Now, when it comes to install, I'm gonna give this a pretty easy one out of three wrenches on the difficulty meter. Like I said, it comes with everything that you need. It'll probably take you about an hour to get the job done with some pretty basic hand tools. So, one of our installers is going to walk you step by step through that process on how to get this onto your Jeep. So, that's gonna wrap it up for my review. Let's go ahead and hop into the install.Man 1: Tools used for this installation, pry bar, 13-millimeter, and 15-millimeter sockets, 3/8 electric impact gun. We're gonna watch a short uninstall video of how to remove the exhaust on our Jeep here then we'll jump right back into the install.Man 2: So, removing a JL muffler, this is gonna be pretty simple. It's held on with two rubber hanger isolators, one on either side of the muffler and there's another one over there by the tailpipe. So, two in total. And then a 15-millimeter clamp up here on the over axle pipe, which we're gonna loosen up second. First thing we're gonna do is pop the hangers out of their isolators. Here's how I like to do it. If you just grab a pry bar and get that situated underneath the Jeep, go ahead and push to the side here, that's gonna pop off just like so. Same thing goes on the other side.Now, one thing I always like to note now that we have the muffler hanging down a little bit, if you too struggle with this and you need to remove these, it's held on with a couple 13-millimeter bolts. There's one here and one up at the top facing the other way. You could always loosen those up with the 13-millimeter socket and a U-joint and this thing will come down as one then you could transfer those over to the new muffler. And this is the clamp that's holding on our muffler now, 15-millimeter socket to loosen that up.Man 1: Now that we're done watching our uninstall video, we're gonna get right into our install here. We're gonna start by sliding our clamp over top of our pipe and putting it on our mid-pipe here and pushing it on. You might have to push it a little bit because it does have some rust on that pipe. Once you get that installed, we're gonna just put our hangers in place here, our rubber grommets to hold this on. Now we have those both in place. We'll end up tightening our clamp up with our 15-millimeter and we'll have this exhaust wrapped up. Now we'll take our 15-millimeter on my impact gun. I'm going to tighten my clamp up. And we have our brackets in...or our mounts in here, and that's all it is to put this exhaust on.That wraps up this review and install of our Flowmaster Outlaw Axle-Back Exhaust with Black Tips for '18 and newer 3.6-liter Jeep Wrangler JLs. Thanks for watching. And for all things Jeep, keep it right here at

      Product Information

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

      Features & Specs

      • Produces a Full, Aggressive Exhaust Note
      • Improves Exhaust Flow and Fuel Efficiency
      • Laminar Straight-Through Muffler Design
      • 409S Stainless Steel, 2.50-Inch Mandrel-Bent Tubing
      • Black Ceramic Coat Finish
      • Dual Out Rear (DOR)
      • Direct, Bolt-On Installation
      • Uses Factory Hangers
      • Includes Black Ceramic Coated 4-Inch 304 Stainless Steel Exhaust Tips
      • Fits 2018-2023 3.6L Jeep Wrangler JL Models


      Loud and Aggressive Sound. The Flowmaster Outlaw Axle-Back Exhaust with Black Tips is specifically designed to release race-optimized, aggressive exhaust notes with a moderate interior tone. This particularly smooth sound is a product of Flowmaster’s technology, featuring an increased surface area and angle of the tapered exit that refocus the sound energy as the hot gases flow out of the muffler.

      Maximum Power and High Performance. Flowmaster innovatively uses its laminar flow technology to deliver a powerful performance. This Outlaw Axle-Back Exhaust is efficiently engineered with perforation patterns that maximize exhaust flow. Furthermore, the cool shell internal design uses a thermal barrier that minimizes exterior muffler temperature. This ingenious combination of structures ultimately provides the Jeep with an enhanced power, improved torque, and better fuel efficiency.

      Durable Construction. Flowmaster uses high-grade, 409 stainless steel, mandrel-bent tubing for its Outlaw Axle-Back Exhaust. This muffler assembly effectively withstands the corrosive attacks and high temperatures of the exhaust gases. It is also fortified with a black ceramic finish. Additionally, the pair of black ceramic coated exhaust tips are constructed from durable, 304 stainless steel, stylishly reinforcing the contemporary and fierce stance of the 2018-2023 JL Wrangler.

      Simple Installation. This Outlaw Axle-Back system is designed for a simple, bolt-on, no-weld installation that takes about 1 hour. It directly fits the JL’s factory hangers and can be installed with light-to-moderate mechanical skills.

      Application. This Flowmaster Outlaw Axle-Back Exhaust with Black Tips fits 2018-2023 3.6L Jeep Wrangler JL models.



      Flowmaster 817803

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler Assembly
      • (2) Four-Inch Exhaust Tips
      • (1) Band Clamp
      • Mounting Hardware

      Customer Reviews (234)

        Questions & Answers

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