FREE 2 or 3-Day Delivery on Orders $119+ Details

Talk to a Challenger Enthusiast
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Win $3,000 in Store Credit! Enter Daily >

Flowmaster Outlaw Cat-Back Exhaust (15-16 5.7L HEMI Challenger)

Item CH1686
Call a Challenger Enthusiast at 1-877-887-1105
M-F 8:30A-11P, Sat-Sun 8:30A-9P
Our Price

$1,229.95 (kit)

FREE Shipping Market Price $1,414.99 You Save 13% ($185.04)

Will this fit your Vehicle?

Select a different vehicle Help?
Update or Change Vehicle
Ship to: Ashburn - 20149
Sorry, please enter a valid US or CA postal code
We're sorry, zip can't be updated at this time.
Recommended Install Shops
How It Works

Add Local Shop Installation

Install Shops are available near Ashburn - 20149
Total cost of service $299.00
    Create a list
    Add to New List

    Saved - View your saved items

    We're sorry. We couldn't save this product at this time.

    or use

      Video Review & Installation

      Jake: Jake here for American Muscle, and today, I've got the Flowmaster Outlaw Cat-Back Exhaust for 2015 and 2016 5.7-liter Hemi Challengers. If you wanna extract some of the best noises out of your Hemi Challenger, then look no further than Flowmaster's Outlaw series exhaust. This combines the loud and aggressive exhaust note with some cool features, for a package that's gonna make an awesome statement, and bring some real personality to your Challenger.Now, a Flowmaster exhaust and a Hemi is a classic combination, and for good reason. They just sound great together. Like your favorite band playing their best song in a concert, it's a bit of a euphoric moment when all the sounds just work and jive together. Such is the case here. I doubt it's just me, but as you heard from the clips at the start of the video, this exhaust on the Challenger just sounds right. It is, however, quite loud, garnering a four out of five on our shake-the-windows loudness meter. Now, it might not be the loudest thing out there. I mean, it's not a full-on straight pipe after all, but it is Flowmaster's loudest sound profile. As you heard, you get that deep, burbly V8 soundtrack on the outside, with that characteristic wail when you really bury the throttle. And that is due to the mufflers.Now, like I mentioned earlier, these are Flowmaster's Outlaw series mufflers. And as you can see, they're pretty close to being straight through, though not quite straight through entirely. There are some baffles on the inside. They're not nearly as much as you might find on some quieter mufflers, even within Flowmaster's own range. You also do get some insulation on the outer edges, here to keep the volume in check to some degree. But if you want noise, this one's got you covered. Now, of course, with an increase in volume on the outside comes a subsequent increase on the inside. Now, this isn't gonna blow your eardrums out. Again, not a straight pipe. So you'll still be able to enjoy some tunes and carry on a conversation with your passengers, but do prepare yourself for a noticeable increase in cabin noise.However, this is where the topic of drone usually crops up, and thankfully, there are some preventative measures against excessive drone baked in here, mostly in the form of the X-pipe. Now, the inclusion of an X-pipe is something that's becoming more and more prevalent in aftermarket exhausts, and it's great to see because there are quite a few benefits to it. X-pipes help even out exhaust pulses caused by uneven firing orders like you find in a traditional pushrod V8, such as the Hemi. So, this is gonna help even out the exhaust pressure by providing a place for the exhaust gases to escape to. All of that is gonna help minimize exhaust drone in the cabin, and it's gonna improve flow, too.Flowmaster's Scavenger Series X-pipe uses their, what they call a patented D-Port technology. So, it creates a low-pressure zone right here in the center, to pull or scavenge that next exhaust pulse. So, again, it's gonna keep things flowing smoothly, and it's gonna help relieve backpressure, for better flow and more torque. Now, construction-wise, you're getting 3-inch mandrel-bent 409 stainless steel tubing. So, you get that smooth flow since there are no weird creases or strange divots in the bends of the metal, and the material itself will provide some good resistance to corrosion and rust. Not to say it's the highest-quality material, but it will still hold up well, and it is pretty budget-friendly, too. But this stuff isn't what you see once it's all installed on the car. That is left to the tips. And with this setup, you get a cool set of quad 3.5-inch tips to cap the whole thing off.Now, these are dual-wall T304 stainless steel tips. They're already welded on, and they come with this sort of brush type of finish to them. They've got a nice slash cut for a bit of an aggressive look, and they even have the Flowmaster logo embossed on the edges here. It's a bit of a subtle update. These aren't huge. They're not gonna make a huge visual statement on the back of your car, but it does bring a little bit more interest to the rear end of your Challenger, and really, you can't go wrong with a set of quad tips on a muscle car.Now, pricing for this comes in right around $1,300, and that puts it in about the middle of the category as far as cat-backs for the Challengers go. Not the least expensive. Not the most expensive, either. Kind of right in the Goldilocks zone, if you will. Now, while you aren't getting all the fancy features or the highest of high-quality materials, this system still provides solid construction, nice features like that X-pipe that we were talking about, and the classic Flowmaster sound. So, for a build that's a bit more focused on maintaining a budget, or somebody who wants that specific type of sound profile, this is gonna be an excellent choice for you.Now, installation will come in at a 2 out of 3 on our difficulty meter, and it should take you about two hours to get the job done. This is a bolt-on system that uses all of your factory exhaust hanger locations, so there's no modification needed to your car or to the system as it comes out of the box. Plus, all the hardware you need, including new clamps, is included. Now, exhausts, if you've done these before, you know it can be a bit tricky to get installed, because most of us don't have access to a lift, and there's a handful of pieces here. But the job itself is still very straightforward, and it's very much one that can be done at home by a DIY'er. So, to show you the process, let's head over to the install bay right now.Man: Tools used for this install: a pry bar, a 3/8 electric impact gun, a long extension, a swivel, 13 and 15-millimeter sockets.So, first thing we're gonna do is remove our stock exhaust system, and what we're gonna do is we're gonna have to get up here. We have two 13-millimeters on this side, two on that side, two right here, and two 15-millimeters up there. So, we're gonna take them off, take this one piece out first, get a couple of our hangers off, and then drop the whole exhaust, without this piece, and take it off the vehicle.So now, first thing we're gonna do is I'm gonna remove these two 13-millimeter spring nuts here that hold this pipe onto this one. I'm gonna take a 13-millimeter. I'm using a swivel to get up in there with my 3/8 ratchet, and we're gonna break these loose and take these off. And it doesn't hurt to use some PB B'laster if you need to, if your exhaust has been on for a while. Ours has been off a couple times. I'm gonna remove this one.Okay. So, now what we're gonna do is remove our grommet here. I'm gonna use a pry bar. We do have an exhaust grommet tool, but I'm just gonna pop it off with the pry bar, just like that, and can get it up out of the way. Now, we have two 13-millimeters in the back we're gonna be removing. I'm gonna take my 13-mill and my 3/8 gun, remove these two bolts, and I'm gonna remove the other one, and when I remove the other one, I'm gonna hold up on the muffler here, so it doesn't fall. Pull this pipe out, and remove this one. Now I'm gonna remove these two bolts up here. They're 15-millimeter. And I'm just gonna loosen 'em up and get that clamp loose, and smack it a little bit, like that, get it loose. Do the same on the other side. And I'm just... Bump it like that. Nice little trick, just to open it up.Now, we'll go to the back, remove two 13-millimeters and a hanger. I'm gonna take my pry bar, remove this rubber exhaust grommet here, hanger, and move it off. There we go. I'll get that outta the way. So, now what I'm gonna do is take my 13-millimeter. We have one hanger bolt here, one hanger bolt here. I have it on my 3/8 gun. I'm gonna remove these two, take that bolt out, and then we'll drop this one and get this bolt out here. So, now that we have our two bolts out, we're gonna remove our exhaust. I have my friend Alex here. He's gonna give me a hand. We're just gonna slide this thing forward, get it off the front, drop it down, and remove it.So, now that we got our stock exhaust off, what we're gonna do is install our front mid-pipe here. We're gonna take it, the curved part here, is gonna go towards the passenger side. We're just gonna slide that over, just like that. We have our clamps here. Gonna take these and get these in place. So, now what we're gonna do, since we have everything in place, our two clamps, I'm gonna take my 15-millimeter on my 3/8 gun, just gonna hold up on this, and tighten our clamps up. That'll hold it up into place, like that.So next, we're gonna install our mid-muffler. I already have my clamp on. I'm gonna take it. It's gonna go just like that. We'll just wiggle it on, and we're gonna tighten this up. I'm gonna take my 15-millimeter on my 3/8 gun and snug this up. It's still movable. So, now you're gonna wanna repeat that same procedure on the opposite side. So now, what I did was I put our hangers back on this pipe, both of 'em that we took off in our uninstall. And now I'm gonna get ready to stick this pipe up into our muffler, put this hanger in the back here, into its rubber grommet, and then we'll slide it in. And this one here is the one we're gonna have to get started. So, now we're just gonna get this hanger started here. Slide that on. Make sure it's slid into the muffler. And then we'll take and get our two clamps up top here hung up, then we'll come back and tighten this one up.So, now we're just gonna push up on our pipe. I'm gonna take my 13-millimeter we took out, my 13-millimeter socket, extension, and 3/8 gun, get it through our hanger bracket here, run it up in place, get it tight, pretty much like that. And then, same with this back one back here. I'm gonna put that bolt in, and we'll get that one tight. Now we'll go back to the front, tighten up our clamp. So, now what we're gonna do is get our two hangers up here installed. I already have a bolt put in the one up top here. I'm gonna take the bolt, my 13-millimeter and extension on my 3/8 gun, and I'm gonna put it through here, and get this one up in place. And then I'm gonna switch over and put a swivel on here, to get up into that one. So, now I'm just gonna push the pipe outta the way, and get that one started. And then we'll line our tailpipe up. And now we'll go up and tighten our 15-millimeter up front there.So, now we're gonna take this clamp, tighten it up. I'm just gonna double-check that we're lined up in the back here, and we'll finish tightening this up. Now you're gonna wanna do this whole tail pipe install on the opposite side.That wraps up this review and install of our Flowmaster Outlaw Cat-Back Exhaust for '15 to '16 5.7-liter Hemi Challengers. Thanks for watching, and for all things Challenger, keep it right here at

      Product Information

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

      Features & Specs

      • Deep and Aggressive Exhaust Tone
      • Tuned for Maximum Performance
      • Race-Proven Outlaw Series Mufflers
      • Scavenger X-Pipe Assembly for Raspier Tone
      • Heavy-Duty Stainless Steel 3-Inch Mandrel-Bent Pipes
      • Polished 3.50-Inch Stainless Steel Flowmaster Embossed Tips
      • Straight Forward Installation
      • Backed By Limited Lifetime Warranty
      • Fits 2015-2016 Dodge Challenger 5.7L HEMI V8 Models


      Deep and Aggressive Tones. The Flowmaster Outlaw Cat-Back Exhaust assembly offers deep and aggressive sound levels outside and inside of the car. With its mufflers’ unrestricted design, you can expect a race-quality and head-turning growl without the annoying drone in the cabin.

      Maximum Performance. This Outlaw Cat-Back exhaust system offers a high-performance upgrade for your Dodge Challenger. It features a pair of race-proven Outlaw Series mufflers, a durable Scavenger X-pipe assembly, and dual mandrel-bent tailpipes for maximum sound and performance. This exhaust assembly is designed to eliminate back pressure and increase horse power, toque, as well as improve fuel efficiency.

      Premium Quality. This cat-back exhaust was engineered and manufactured in the USA using only the finest stainless steel material to ensure premium quality. The assembly includes components that are built from 409S stainless steel that is long-lasting, rust-resistant, and proven to have high tensile strength. Thus, you can expect this exhaust to be able to withstand any driving conditions.

      Hassle-Free Installation. This Cat-Back exhaust system can be installed in your Challenger in a span of 2 hours or less. This assembly is designed for easy installation and comes equipped with all the necessary hangers and hardware. With complete hardware and a detailed manual included, installation right out of the box is possible.

      Limited Lifetime Warranty. This Flowmaster Cat-Back exhaust system is warranted to be free from defects in materials and workmanship. It includes a limited lifetime warranty coverage that is valid for as long as the exhaust assembly remains installed in your Challenger.

      Application. This Flowmaster Outlaw Cat-Back Exhaust is specifically designed to fit 2015-2016 Dodge Challenger models equipped with the 5.7L HEMI V8 engine.



      Flowmaster 817717

      CA Residents: WARNING: Cancer and Reproductive Harm -

      Installation & What's in the Box

      Installation Info

      What's in the Box

      • (2) Outlaw Delta Force Mufflers
      • (1) Scavenger Assembly
      • (1) Left Tailpipe Assembly
      • (1) Right Tailpipe Assembly
      • (1) Hardware Kit
      • (2) 2.50-Inch Clamps
      • (6) 3-Inch Clamps
      • (6) 7/16-Inch Hanger Keepers
      • Installation Manual

      Customer Reviews (233)

        Questions & Answers

        10 More Questions

        Will It Fit My Challenger

        • R/T - 15, 16
        • R/T Plus - 15, 16
        • R/T Plus Shaker - 16
        • R/T Shaker - 16