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MBRP Installer Series Axle-Back Exhaust (18-20 3.6L Jeep Wrangler JL)

Item J126041-JL
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Market Price $350.74 You Save 13% ($45.75)
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$304.99 (kit)

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      Review & Installation Video

      Hey, guys. Today I'm here with the MRBP Installer Series Axle-Back Exhaust system fitting all 2018 and newer JL Wranglers with the 3.6-liter V6 motor. So, adding an axle-back system to your Wrangler can offer a number of different benefits including small performance gains and high RPM ranges, a deeper tone or more aggressive tone out of your 3.6-liter as well as an upgraded look. And this option by MBRP is going to bring all of that to the table. This is gonna replace that big and bulky as well as restrictive factory muffler with something that is a lot smaller, a lot sleeker, and a lot more attractive. Not to mention, this is gonna be a lot less restrictive freeing up a lot of airflow giving you those small horsepower and torque gains in those high RPM ranges, but it's also going to deepen the tone out of that 3.6-liter.As far as noise level goes, this is not going to increase as much in volume as it is going to deepen the tone. So, this is gonna get a two out of five on the loudness meter from me with one being completely stock and five being incredibly loud. So, on the exterior, you are gonna be able to hear it, you're gonna hear the deepness in the tone, but it's not going to increase a lot in volume like I mentioned before. Now, inside the cab area, you're not gonna get as much noise either, you will hear your exhaust when you step on the throttle. However, from day-to-day and just cruising around, you're really not gonna hear any drone or any interior cab noise. That makes it perfect for the daily driver or somebody who is just looking for an upgraded look as well as a little bit of a deeper tone and doesn't need something incredibly loud.With all of that being said, this is going to be incredibly affordable for an axle-back system at roughly $300. Now, there are less expensive options for axle-back systems, but those are usually gonna be for those high tuck options or those off-road options in comparison to this where this has a muffler as well as a dual tip. Now, in taking a look at those more expensive choices, those are usually gonna be for either premium brands or very high-quality materials. This is gonna be made of an aluminized steel with a 304 high-quality stainless steel tip. However, that aluminized steel is gonna be more mid-grade to the full 304 stainless steel exhaust that are gonna be a lot more expensive than this. Not to mention, this does come with a couple of different pieces involved. Usually, those more expensive options are gonna be welded into one piece, so it really comes down to what you're looking for out of an exhaust. In my personal opinion, I think if you're not looking to break the bank on an axle-back exhaust system but you're still looking for something that's going to have a good sound out of it, a good look, and hold up for a very long time, then this is a good option to take a look at.Install is gonna be a pretty easy one out three wrenches on the difficulty meter. You're gonna need a couple of basic hand tools to get the job done. So, speaking of the install, let's jump into that now.Tools that I used for my install were PB B'laster or any penetrating oil, an impact wrench, 10-inch extension, a 13-millimeter ratcheting wrench, a 3/8-inch drive ratchet, a 15-millimeter deep socket, a 13-millimeter swivel socket, a 5/16-inch Allen socket, and a hanger removal tool.So, there's a couple of ways that you can take off your axle-back. You could take it out of the isolators or out of the hangers and remove it that way or you can completely remove the hangers. I personally remove both of the hangers on either side just because there's not a lot of room next to this large muffler. So, for that, you're gonna need a 13-millimeter socket and a 13-millimeter ratcheting wrench, and we can take off the two bolts that are holding on each hanger. So, this may be a little bit difficult to see, however we're gonna be on top of the hanger and this is the bolt on the backside here. I'm going to take a 13-millimeter swivel socket, a 10-inch extension, and ratchet, go over the sway bar and start removing that bolt. Now that bolt is completely removed, we can head to the bottom one. So, now we can move to the bolt on the side that's threaded into the frame. I'm gonna use a 13-millimeter ratcheting wrench because there's not a lot of room here and we can start to remove that bolt. So, once that's unthreaded, you can actually keep the hanger hooked on to the frame here, it will stay in place while we take out the bolts on the other side.So, our next step is to loosen up this clamp. I'm gonna be using a 15-millimeter deep socket to do that as well as my impact wrench. Once that's loosened up, we can open up that clamp a little bit and we can wiggle off our axle-back. So, what we can do now is unhook our hanger brackets from the frame. Do that on either side and it should drop down and we can wiggle the piping and it should come right off.Before we hop into the install, I wanted to tell you guys a little bit about this MBRP exhaust and how it's gonna benefit you over the stock exhaust. Now, to start off, we are gonna be getting rid of this big and bulky and baffled muffler with something that's a lot smaller and sleeker, looking a lot better at mounted up on the back of your Wrangler. Now, not to mention, we are going to be freeing up a lot of airflow and getting rid of a lot of restriction with this new muffler as well as the piping from this MBRP axle-back exhaust. As you can tell on our factory system, it's large, it's in the way, and it also has a pretty big bend in this over the axle piping, but as you can tell on this new MBRP exhaust, we're not getting any bends in the piping at all, which is going to allow a lot better airflow. Now, speaking of airflow, this is also going to deepen that exhaust note, it is not gonna be as baffled as the factory exhaust, however it is still gonna be pretty quiet for an exhaust system. The Installer Series by MBRP is gonna be more or less the entry-level exhaust system, so it is gonna be on the quieter side. However, you can ensure that it is going to sound a lot more aggressive, have a deeper tone and free up a lot of that restriction in comparison to the factory setup.Now, the big thing about this is the fact that it's gonna look a lot better. As you can tell, it's going to be a lot smaller, it's gonna be sleeker, but it's got a large polished tip on the back as well as a dual outlet in comparison to our single outlet exhaust system from the factory. Not to mention, you are getting a step up in materials with an aluminized steel construction and the tips are high-quality 304 stainless steel. So, you are not only getting a long lifespan out of this exhaust system, but you are getting some high-quality materials that are going to look good while doing it. So, enough about these two side by side, let's go put our new exhaust together.So, before we go ahead and put our exhaust together, what I want to do first is swap over our factory hangers and isolators onto our new exhaust piping. So, what I'm gonna do is take some PB B'laster, you can really use any lubricant for this just to help the isolator separate from the hanger itself. And I'm gonna use an exhaust hanger tool. You don't necessarily have to use this. This just makes it a little bit easier to take it off. So, on our new piping, our hanger and our over the axle pipe is going to sit at the front of the exhaust here. I'm just gonna slide this into place, then we can repeat that for the other hanger. All right. Now we're ready to mount up our exhaust.So, as you saw before, our exhaust is set up in a couple of different pieces, so we're gonna put on the over the axle pipe first. Now, you wanna make sure that you have your clamp on, you may have to loosen it to get it over this step here, but once that clamp is on, what we can do is wiggle this into place. There is gonna be a notch for the little bolt on the side here to make sure that everything's lining up properly and if you have to move the isolator down or to the side a little bit just to wiggle it on, that can be helpful. Once our over the axle pipe is in place, what we can do is loosely bolt up our hanger just so it's in place for when we piece together the rest of the exhaust. So, we're not gonna tighten anything down just yet, we wanna get everything attached and then we can go back and tighten everything up.So, before we mount up our actual muffler, what I wanna do is put on the other side of our piping that has the other hanger on it and then we can attach it to our over axle pipe. So, first, we need to put on the clamps. Just gonna slide these over. Now, we wanna leave them pretty loose at this point, but we do wanna snug them up to the point where we can manipulate the angle of our pipe here. So, I'm gonna take a 15-millimeter deep socket and just snug that up. Great. So, then next what we're gonna do is put a clamp on this front outlet here, or inlet, should I say, and that is where our over the axle pipe is going to be installed.So, again, what I'm going to do is just loosely install this hanger here with the factory bolts. And that should keep everything in place. What we can do next is install our last piece of piping on this side with the two inlets, making sure that the clamp is on the inlet itself. So, what we can do now is tighten down all of our clamps. I'm gonna start with our over axle pipe using a 15-millimeter deep socket. Then we can tighten down the clamp on the other side of our over axle pipe and then onto our two tailpipes here. You wanna try to make sure that these two tailpipes are as even as possible.What we can do next is add our exhaust tips. So, these are just gonna slide right on the back of our tailpipe and what we can do is make sure that these are even before we go ahead and tighten those up. So, I'm gonna grab the other one, slide that on. Now, it comes down to preference on how far you want these to stick out. I usually just line them up at the bottom of the bumper here. After the tips are where you want them, we can take a 5/16-inch Allen socket and tighten them up into place. Last but not least, we can tighten up our hangers using that 13-millimeter swivel socket. You can now use a swivel socket for the side frame bolt, considering that we don't have that large muffler in the way anymore, makes it a little bit easier. We can tighten up the top one. I'm still using that 10-inch extension and going above the sway bar. And we can repeat that process on the other side. After everything's tightened up, you're all set to go.So, that's gonna wrap it up for my review and install. Make sure you like and subscribe. And for more videos and products like this, always keep it right here at

      Product Information

      Features, Description, Specs & Installation


      • Produces a Rich, Mellow Exhaust Tone
      • Improves Exhaust Flow With Minimized Exhaust Temperature
      • Straight Flow-Through Muffler Design
      • Double Rear Exits
      • Aluminized Stainless Steel 2.50-Inch Mandrel-Bent Tubing
      • Comes With 4-Inch T-304 Polished Exhaust Tips
      • Simple, Bolt-On Upgrade
      • Fits 2018-2020 3.6L Jeep Wrangler JL Models


      Deep and Mellow Sound. The MBRP Installer Series Axle-Back Exhaust system is specifically designed to deliver a superior-quality sound. The deep and mellow tone exudes a certain level of confidence that matches the Jeep Wrangler’s on- and off-road strength.

      Enhanced Performance. This MBRP Installer Series Axle-Back Exhaust not only upgrades the sound quality of the JL, but also elevates its performance. In addition, it is efficiently designed to intensify the exhaust flow and minimize temperature increase without compromising fuel consumption.

      Quality Construction. This Axle-Back Exhaust is constructed from durable, aluminized stainless steel. It definitely gives high importance to quality and value for money. Moreover, the tubing is fully-sealed to ensure protection from corrosion, especially the seams that are rust-vulnerable.

      Simple Installation. The MBRP Installer Series exhaust is designed for a hassle-free, bolt-on, no-weld installation. It directly fits the OEM hangers and can be installed in approximately 1-2 hours with light to moderate mechanical skills required.

      Application. The MBRP Installer Series Axle-Back Exhaust fits 2018-2020 Jeep Wrangler 3.6L models

      Fitment: 2018 2019 2020 Details

      MBRP S5529AL

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Inlet Pipe
      • (1) Muffler
      • (1) Passenger-Side Tail Pipe
      • (1) Driver-Side Tail Pipe
      • (2) Exhaust Tips
      • (4) 2.50 Inch Clamps

      Customer Reviews (13)

        Reviews of MBRP Exhaust products have an average rating of 4.5 out of 5

          Questions & Answers

          10 More Questions

          Will It Fit My Wrangler

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