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MBRP XP Series Axle-Back Exhaust (18-21 3.6L Jeep Wrangler JL)

Item J126040-JL
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Market Price $425.49 You Save 13% ($55.50)
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$369.99 (kit)

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      Video Review & Installation

      I'm Joe from ExtremeTerrain. In this video, we're going over the MBRP XP Series Axle-Back Exhaust, fitting all '18 and newer 3.6-liter JLs. Now, this bad boy right here, it's gonna be a great option for you if you're looking to replace your axle-back with a stainless exhaust that's gonna feature deeper tone, more volume, and awesome dual polished tips.So, right out of the gate here, let's open this up with volume. You guys just heard this thing next to the stock exhaust, and it is a huge upgrade, in my opinion. I'm gonna give it a four out of five on our wake the neighbors scale. Definitely still a daily drivable kit, in my opinion. Drone is a little bit there, mid-range RPM, but definitely not something that can't be managed. What are huge pluses with this exhaust kit? You're getting a deeper tone, to say the least, you're getting a little bit more volume, and on top of that, you're getting a nice throaty exhaust note as well.Diving into what is gonna be making that noise, we have some really high-quality 2.5-inch mandrel bent 409-grade stainless steel tubing. Now, mandrel bends, all that means is, the walls of the tube throughout the length of any bends, they're gonna be nice and smooth. Without that, you'd see a little bit of crumpling on the inside here and that is definitely not good for exhaust gas flow. Mandrel bends are though. 409-grade stainless steel, that's gonna be a solid mid-ground. That's actually exactly what's used on the factory exhaust as well. You might see a little bit of surface rust on here, however, nothing that's going to affect the structural integrity of this exhaust, and it's pretty high-quality stuff.And out the back, we have our tips. Both of these are gonna be 4 inches. They're both rolled, they're both slash-cut, and they both are embossed with the MBRP logo on top. Now, one thing I really like about these is MBRP saves that really high-quality stainless steel for the part you see most often. Both of these exhaust tips are gonna be 304-grade. So, that is gonna be looking nice and shiny for years to come.As far as where this sits in MBRP's lineup, the XP is gonna be right in the middle. Now, if you were looking to save a little bit, take a look at the Installer Series. That's gonna be that lesser grade aluminized steel. It won't hold up as well, but it's a little bit better on the wallet. If you were looking to take it up a notch, the Pro Series, that'll give you that 304-grade stainless steel. However, it's gonna cost you a little bit extra, but in the long run, that should hold up a little bit better. This one gives you the best of both worlds, coming in right in the middle.Now, there is one thing I do wanna remind you guys about, and this isn't a problem of this MBRP specifically, but any dual exhaust that features tips like this, it is gonna take a little bit of your departure angle. So, if you're off-roading every weekend, you're doing some rock crawling, these are probably gonna be the first things to go. Just keep that in mind. This isn't intended to be a high-clearance kit, more for the daily driver that's looking to hear a little bit more of that Pentastar. If you fall into that category, this is gonna be great for you.Next up, let's talk a little bit about pricing. Keeping with the theme here, it's gonna be middle-ground. We're looking at about 400 bucks, not the most expensive kit on the site, not the most budget-friendly either, but for what you're getting here, I think that actually is a really good return on investment. It's a solid kit, you're getting quality stainless steel, and it even includes a three-year limited warranty.Install here, not gonna be too bad. I'm gonna give it an easy two out of three wrenches on our difficulty meter. Should take you at most an hour or two if you come with the right tools. One thing I do wanna mention is this does come in a few pieces right out of the box. However, there's no cutting or modifications required to your Jeep to get this hooked up. So, without any further ado, let me show you what tools you'll need and how it's done.Tools I used for this install will include an impact, pry bar, exhaust hanger removal tool, ratchet, 15-millimeter sockets, an 8-millimeter Allen key, and some spray lubricant like PB Blaster.All right. So, under the Jeep, we're gonna start our install right above the rear axle tube here. You're gonna find a clamp with this over-axle pipe. We're gonna loosen that up with a 15-millimeter socket.So, now the only thing holding up our muffler here is gonna be these rubber hanger isolators. There's one on each side of the muffler. In our case, I'm gonna use that trim panel removal tool. If you don't have one of those, I'm sure you could get this off with a pry bar as well, but this makes things really easy. And we're gonna do the same thing on the other side. Put that up there. Then, if you pull that muffler straight back, it'll pop right off the Jeep.So, now that we have all of our factory stuff removed, I figured now would be the perfect time to build up our MBRP kit, put the two next to each other, and highlight some differences and some similarities between both of these axle-backs.First thing I wanna talk about is gonna be stainless steel quality. The majority of both of these kits are both gonna be that mid-grade 409 stainless steel. Nothing wrong with that. That's perfectly fine. There's one exception to that, however. On our new MBRP kit, we are upgrading to that really high-quality 304 stainless steel. So, those tips on the new MBRP, they're gonna be staying nice and shiny for a really long time to come.Next thing I wanna talk about is pipe diameter. Now, the inlet on both of these is gonna be 2.5 inches in diameter. After the muffler, our factory kit goes up to 3 inches while our MBRP kits sticks at 2.5 until you get to the tips, obviously, and then you have dual 4-inch rolled, slash-cut tips embossed with the MBRP logo. Suffice to say, those 4-inch tips, huge upgrade over our factory 3-inch tip.Last but not least, another huge difference between these two, if not the biggest difference between these two, it's gonna be on the muffler. With the two side-by-side, you can see just how big and restrictive this factory muffler is. It looks absolutely massive, especially on the ground next to that MBRP, which is really trimmed down, really thin, not as restrictive, and that's where most of our sound is gonna be coming from.So, that's pretty much gonna do it as far as differences and similarities between these two exhausts go. We're gonna take this over-axle inlet pipe combo thing right here, we're gonna get this started into our hanger, and then we're gonna build up this MBRP on our Jeep.So, we're gonna grab this pipe. I've lubricated that hanger. We're also gonna throw a clamp around there, get this started on our existing exhaust, and start it in the hanger as well.Next, we're gonna grab our muffler. You want the dual side facing the pipe we just installed. So, the easiest way I've found to do this is to grab the muffler like this, get a clamp started right here for this pipe, get a clamp started over here, as well as the tailpipe for the other side. We're gonna get that started in our hanger first. Once that's in, we kind of push these two pipes together over here, like that, and then just even everything up a little bit. That muffler is gonna be a little bit tilted. And that's the hard part over with.Now, we have our other tailpipe to take care of. And just like the rest of this, we're gonna throw a clamp on, get that started and sitting pretty. And then that's gonna slide in as simple as that.Now, at this point, pretty much installed, other than the tips. We're going to give this a little bit of a wiggle, make sure everything is aligned, then tighten down all those clamps with a 15-millimeter socket.Now, as we're tightening this one down, a couple of things I wanna talk about here. One, as with all the clamps, you make sure this is turned up, make sure the actual bolt part is out of the way, just for a little bit of extra clearance. And number two, this pipe right here, it's a little bit shorter on this side and a little bit longer out here. If your pipes don't exactly line up this way, give this a flip and you'll be just fine.Last but certainly not least, we have our two tips. They're gonna slide on just like so. We're gonna tighten those down with an 8-millimeter Allen key.Guys, that's gonna do it for me. It's also gonna do it for the MBRP XP Series Axle-Back Exhaust, fitting all '18 and newer 3.6 JLs. As always, guys, thank you so much for watching. Make sure you keep it right here at ExtremeTerrain for all things Wrangler.

      Product Information

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


      • Produces a Deep, Mellow Exhaust Tone
      • Maximizes Exhaust Flow
      • Straight-Through Muffler Design
      • Five-Inch, Mandrel-Bent, T-409 Stainless Steel
      • Dual, Rear Exit
      • Direct, Bolt-On Installation
      • Comes With 2 Polished T304 Stainless Steel Exhaust Tips
      • Fits 2018-2021 3.6L Jeep Wrangler JL Models


      Deep, Mellow Sound. The MBRP XP Series Axle-Back Exhaust has been optimally constructed to deliver a powerful, deep tone. This aggressive sound appropriately complements the Jeep Wrangler’s fierce exterior. This combination will surely stand out, especially in off-road settings.

      Powerful and Efficient. This XP Series Axle-Back Exhaust provides an efficiently powerful performance. It is specifically engineered to maximize exhaust flow, while minimizing temperature. As a result, the improved exhaust performance is prolonged with more power and efficient fuel utilization.

      Quality Construction. The XP Series Exhaust is made of premium quality, T-409 stainless steel. This material is also reinforced to resist corrosion thereby extending its lifespan. Furthermore, MBRP includes a pair of polished T-304 stainless steel exhaust tips to add some stylish gleam.

      Simple Installation. The MBRP XP Series exhaust is conveniently 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 requiring light-to-moderate mechanical skills.

      Application. This MBRP Pro Series Cat-Back Exhaust fits 2018-2021 Jeep Wrangler 3.6L models.

      Fitment: 2018 2019 2020 2021 Details

      MBRP S5529409

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (1) Muffler
      • (1) Inlet Pipe
      • (2) Tail Pipes
      • (4) Clamps
      • (2) Four-Inch Exhaust Tips

      Customer Reviews (80)

        Questions & Answers

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