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Stainless Works 3 in. Retro Chambered Cat-Back Exhaust w/ H-Pipe (15-17 GT Fastback)

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  • Item 384842

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    Features, Video & Details

    • Aggressive Muscle Car Exhaust Note
    • Retro Styled 2.5" Core Chambered Mufflers
    • 3" Diameter 304 Stainless Steel Tubing (Steps Up from 2.5")
    • Mirror Polished 304 Stainless Steel Tips
    • Includes H-Pipe and Two Chambered Resonator Tips
    • Direct Fit Replacement Upgrade
    • 22 lbs. Lighter Than the Stock Cat-Back System
    • Designed and Manufactured in the USA
    • Fits 2015-2017 GT Fastback Mustangs with Factory Manifolds

    Review & Installation Video

    Review & Install Video

    Hey, everybody. I'm Justin with AmericanMuscle.com, and this is my breakdown of the Stainless Works Retro Chambered Catback Exhaust System with H-Pipe, available for your 2015 Mustang GT. If you guys are looking for a high quality, perfect fitting catback system that will give your Mustang that old school muscle car rumble, well, then you have to check out the Stainless Works Retro Chambered three-inch system for your S550. Now, as you've just heard, this system will give your Coyote-powered GT that old school throwback Mustang sound that was big with the hot rods back in the day. That deep rumble is a combination of the included H-pipe here, along with Stainless Works' unique retro chambered mufflers. Now, these things are unique in the fact that they do offer a straight-through design along with that straight-through performance, but they do have enough baffling that's gonna keep any excessive rasp to a minimum, that can sometimes come along with having a straight-through muffler. Now, because of this, you can expect a relatively tame tone while cruising around, but these things really do come to life when you get into it. And the best part is absolutely zero drone while on the highway. All right, guys, as for the construction, we're looking at 3-inch mandrel bent tubing, all of it which has been made from 304-grade stainless steel, including these 4-inch mirror polished conical wall tips. We would like to point out since you are ditching that heavy factory exhaust and suitcase style resonator and switching to a full stainless system here, you're gonna be shaving roughly 20 pounds off the car, which is never a bad thing. Another big thing I wanna point out here is that this particular catback that I have in this video is designed to work specifically with 2015 Mustang GTs that still have the factory manifolds or factory headers in place. Now, if you guys are looking to do long tubes down the road or maybe at the time of the purchase of the exhaust, then you should definitely check out the Stainless Works option with the performance connect, meaning it's designed to work specifically with those Stainless Works long tube headers. When it comes time to get dirty, guys, you wanna leave yourself about two hours to get this catback installed from Stainless Works. I will say that doing the exhaust systems on the 2015s have been made a lot easier, thanks to the addition of the independent rear suspension. But either way, give yourself a couple of hours, grab an extra set of hands if you can, and make sure you have a good set of quality tools before you get started. As always, if you have any questions about this particular system here or about the install itself, feel free to reach out to a Mustang expert any time. So if you're looking for a well-built, great sounding system, and really prefer that old school muscle car rumble. Well, then you guys are gonna have to check out the Retro Chambered Catback Exhaust System from Stainless Works, available right here at AmericanMuscle.com.

    Aggressive Exhaust Note. Add the loud aggressive exhaust note of a classic 60's muscle car to your coyote powered S550 GT Fastback with a Stainless Works 3" Retro Chambered Cat-Back Exhaust system. This catback not only sounds great, but also improves exhaust flow with the included H-Pipe for an increase in horsepower and torque.

    Muscle Car Rumble. The included H-Pipe not only helps increase power, but it also adds a deep muscle car rumble to the sound of your exhaust with its classic "H" crossover pipe design.

    Stainless Steel Construction. Constructed in the USA from mandrel bent 3" diameter 304 stainless steel tubing for strength and superior corrosion resistance, this Stainless Works Mustang Cat-Back exhaust system features two round retro chambered 2.5" core mufflers that end with mirror polished 304 stainless steel slant cut resonator exhaust tips.

    Lightweight. This Stainless Works Cat-Back exhaust system is 22 lbs. lighter than the factory Ford catback system, making it perfect for track and drag racers looking to shed unwanted weight in the pursuit of quicker times.

    Direct Fit Upgrade. This Stainless Works Mustang Cat-Back with H-Pipe includes all the hangers and clamps needed to bolt straight up to the OEM factory location without any modifications required, making it a direct fit, bolt-on replacement upgrade.

    Application. This Stainless Works Retro Chambered Cat-Back with H-Pipe is specifically designed to fit the 2015-2017 GT Fastback Mustang with the factory exhaust manifolds installed. Not compatible with convertibles.

    Fitment: 2015 2016 2017 Details

    MPN# M15CB

    CA Residents: WARNING: Cancer and Reproductive Harm - www.P65Warnings.ca.gov

    What's in the Box
    • (1) Right Muffler Assembly
    • (1) Left Muffler Assembly
    • (1) H-Pipe Assembly
    • (1) Right Intermediate Pipe
    • (1) Left Intermediate Pipe
    Installation Info
    Tech Specs
    Cat-Back Exhaust Specifications
    Piping Material: 304 Stainless Steel Tip Material : Mirror Polished 304 Stainless Steel
    Piping Size: 3" (steps up from 2.5") Tip Size: 4"
    Muffler Type: Retro Chambered 2.5" Core Fitment: 2015-2017 GT Fastback
    Will it fit my Mustang?

      Customer Photos (11) Submit Your Photo

      View All 11 Photos

        Questions & Answers (14)

        5 Top Rated Questions

        What is the sound difference between this H-pipe version and SW's X-pipe version?

        • With the H-pipes these will be deeper and more of a classic muscle car sound! Whereas the X-pipe will be more so on the raspy side and more of a newer car sound.

        Helpful (4)

        Am I going to wake the neighbors with these? If it's only a few, that's okay :) I live in an apartment complex and don't want to be 'that guy', if it can be helped. I'm getting ready to replace the stock sound.

        • These are going to be louder than factory, however, not overbearing in volume and has a classic sounding deeper rumble.

        Helpful (2)

        Do they come with clamps?

        • The Stainless Works 3 in Retro Chambered Catback Exhaust reuses the factory exhaust.

        Helpful (1)

        What kind of horsepower gain can I expect from this exhaust system?

        • We do not have horsepower ratings on our exhausts as the horsepower numbers are rarely affected with a new exhaust setup.

        Helpful (1)

        Keeping in mind I have no current plans to supercharge my S550; what is better for overall performance gains with bolt-ons: this system? Or the LMF 3in core system?

        • Both systems will offer around the same performance gains because they are the same 3 inch diameter.

        Helpful (1)
        Post Your Question
        9 More Questions
        Will this set up fit kooks long tube (off-road) headers on my 2016 GT? If not, is there an adapter or connection I could purchase to fit this cat-back? 1 answer
        Is this exhaust as loud as the Corsa Sport Cat-Back? 1 answer
        Does the system in the video have the 2.5" or the 3" inner core? I know its a 3" system...but the inner core size is optional, do we know which was used? 2 answers
        Will this fit a convertible 2015 GT? 0 answer
        Will this work with pypes off road long tubes? 1 answer
        Is this 50 exhaust state legal? 1 answer
        Will this be compatible with the BBK 1 3/4 Ceramic Long Tube Headers with catted mid-pipe adapter? The adapter says it will fit with any 2.5in catback system, but want to make sure. Thanks. 1 answer
        will it fit my mustang if I have headers that are made to fit a factory exhuast 1 answer
        Will this fit a 15 GT convertible? 1 answer

          Customer Reviews (40) Write a Review

          Overall Rating 4.8

          out of 5 stars

          Installation Time:Afternoon

          Installation Cost:$100-$250

          • Loudness / Volume 4.263158 4.3
          • Exhaust Note 4.947369 4.9
          • Fit & Finish 4.736842 4.7
          • Bang For Your Buck 4.526316 4.5



          • 5/5

            Installation Time: Less than 1 Hour

            January 27, 2019

            No regrets

            Afetr having looked over what seems like thousands of sound clips for various different exhaust kits, i decided on selecting this one. Let me tell you i have no regrets. The exhaust note is perfect. Not obnoxious or raspy, but a nice deep tone. 10/10 would recommend

            AlexanderS

            Year: 2015 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Less than 1 Hour

            November 01, 2018

            Stainless works retro catback

            Took me about an hour and a half to bolt it onto my car. It has the low old school rumble which is awesome. A little louder than I thought it was going to be but definitely not going to complain about it at all. No raspy tin can sound, but does done a bit in 6th gear. I would buy it again no problem if I was starting over.

            Zachary

            Year: 2017 Submodel: GT

            Helpful (5)

          • 5/5

            Installation Time: Shop Install

            August 05, 2018

            Very Nice!!!

            The look and sound is amazing out of this exhaust. I think it's just right!!! Especially in sport mode,,, we have a 16 GT Premium and was a little worried about some of the other reviews, but top notch sound,,, idle is better, wake the neighbor isn't that bad, just a great sound!!! Thank You

            JohnL

            Year: 2016 Submodel: GT

            Helpful (7)

          • 4/5

            Installation Time: Less than 1 Hour

            July 03, 2018

            Great Sound But Drone at Highway Cruising

            Beautiful 60's Muscle car sound and it looks great. There is a very noticeable drone at highway cruising 1700-1900 rpm. Not sure why more people are not mentioning this as it is an issue if you are doing a long trip. I have the Manual 6 speed and the drone is only there in 6th gear at those rpm's otherwise the system has an amazing sound. If i plan to do a long trip i will swap the exhaust out at home. Does not take long to swap.

            P51GT

            Year: 2015 Submodel: GT

            Helpful (8)

          • 3/5

            Installation Time: Afternoon

            June 20, 2018

            OK but not great

            I have mixed thoughts on this exhaust system. First, the positive...I love the sound. This thing makes my 2017 GT sing the right song and hit all the right notes. But...it is MUCH LOUDER than I expected. Not so loud that I would remove it, but loud enough that I would not buy it again. Also, the alignment is difficult to achieve and maintain. After a couple of different times on the lift, I am still struggling to get the driver side tip to remain centered in rear valence. I called the manufacturer, sent them some photos, and they failed to call back or offer any suggestions.

            PatrickJ

            Year: 2017 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            June 19, 2018

            Awesome Muscle Car deep tone and exhaust note!!

            I truly believe, that I must have listened to 100's of exhaust sound clips on the internet before making a decision to buy this exhaust system. I wanted a new exhaust system that didn't sound raspy when paired with the Coyote power plant. This system absolutely delivers the Muscle Car sound I was wanting and desiring to the point I feel like Steve McQueen in his 1968 Mustang GT fastback 390 4v!! I cannot get over the deep muscle car like exhaust note this system produces, which only seems to be getting better during the past 6 weeks of ownership!!! If you're as particular as me and are wanting a deep tone and not a raspy tone like the other exhaust systems, then don't wait and buy this one because you'll not be disappointed!!

            MURFS03

            Year: 2017 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Less than 1 Hour

            May 31, 2018

            Deep Rumble. Like the older cars

            The sound that this system makes is great. A deep tone rumbling. Like the old exhaust. I’m older and mid mufflers were to loud for me at hi speed. American Muscle got me New mids to tone down. Love The Sound

            KeithH

            Year: 2015 Submodel: GT

            Helpful (11)

          • 5/5

            Installation Time: Afternoon

            March 28, 2018

            Overall Great Purchase

            Install was pretty easy, resonator was rusted on so we had to cut stock exhaust, but otherwise was easy to mount. Exhaust note is fantastic, not loud by any means but defiantly gives the Coyote a stage to sing its beautiful song on. Have not dyno'd yet, waiting on the matching manifolds to come in.

            BrandonK

            Year: 2016 Submodel: GT

            Helpful (12)

          • 4/5

            February 17, 2018

            Sounds great

            Sounds better than any exhaust I’ve heard for the S550, It’s loud but not too loud, and it sounds like an old muscle car with a real deep tone. The video on AM sounds similar to it but not exactly how it sounds. When I heard the sample video I didn’t like how it sounded higher in the RPM range but it doesn’t sound like that in person. I find myself downshifting a lot more just to hear it. It sounds it’s best between 1500 and 3000RPM. I have a manual GT/CS with 3:55’s and on the highway (60MPH) I’m turning around 1500-1700RPM and it does have some drone, nothing too bad but it’s enough for me to slow it down to about 57MPH to get out of it. The only complaint I have about it was the fitment, one side hangs lower than the other and I need to adjust it.

            BlakeP

            Year: 2017 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Afternoon

            December 12, 2017

            Nice mature sound.

            I wanted an exhaust with a low rumble, no rasp, and not exaggerating loud. This is it! It's loud enough to be noticed, cold starts are pretty loud, but it mellows down alot. Idles really deep, and when you get on it the sound is smooth the whole rpm range, no rasp. Took me about 3 hrs to install by myself, but I was back and forth playing with my two sons and working on the car.

            OrlandoI

            Year: 2017 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            November 02, 2017

            Works Retro H-Pipe

            Sound awesome have some snappy neighbors so I have just the right sound ! not super loud, until step on gas.Sound great on the highway!

            AndrewKIII

            Year: 2016 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Afternoon

            October 31, 2017

            Great tone!

            Looks great and the best tone I’ve heard on a mustang.

            NelsonS

            Year: 2017 Submodel: GT

            Helpful (9)

          • 4/5

            Installation Time: Afternoon

            October 30, 2017

            Amazing Sound! Easy install

            I researched for months and listened to tons and tons of audio clips. These sounded amazing and had little to no rasp. Install was a breeze and this was the first time I've ever attempted anything like this. The only reason I didn't give it 5 stars is because of the fit. from the cat back everything was great but where the exhaust tips come out they are not centered. I tweaked and played with them for a while just to make sure they weren't touching any part of the car but they are still not centered. Overall, these are amazing and sound great.

            JasonP

            Year: 2017 Submodel: GT

            Helpful (8)

          • 5/5

            Installation Time: Afternoon

            October 20, 2017

            Best sound if you want old school

            Aligning the mufflers is a complete pain and they shift after a few initial drives.

            Sonder

            Year: 2016 Submodel: GT

            Helpful (9)

          • 5/5

            August 15, 2017

            Awesome

            It's badass sounding, so many people roll up next to me in traffic and say they love it

            KyleW

            Year: 2017 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Afternoon

            June 28, 2017

            sweet sound

            sound is raspy but clean . i had flowmasters before and was scared to change but thought i would step away and go with something different. spent lot of time listing to americamucle muffler review. loved them for that...

            RickyH

            Year: 2015 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Less than 1 Hour

            June 27, 2017

            Best Sounding Exhaust

            loud when you need it with great low tone. Not raspy at all.

            MichalZ

            Year: 2016 Submodel: GT

            Helpful (9)

          • 4/5

            Installation Time: Afternoon

            June 18, 2017

            Great Sound but Fit Could Be Better

            First off, these pipes have a fantastic tone and sound and I am glad that they are the ones I selected. The fit is somewhat lacking on them though. As several people have mentioned, they do not center very well. Apparently, it is luck of the draw on these as was mentioned by the owner of the shop I took them to in order to get them centered. They spent a good amount of time getting them just right mainly because they are very particular about their work. If you are willing to work through the fitment issues these are a great choice.

            FamilyTime95

            Year: 2016 Submodel: GT

            Helpful (9)

          • 5/5

            Installation Time: Less than 1 Hour

            April 22, 2017

            Good stuff

            Exactly what I was looking for. Not to loud or any rasp. Nice deep tone throughout Ron range. Slight drone between 1700-1900 but manageable. Overall sounds great. Easy to install as well it took more time to get the old exhaust off then to get this one on.

            Joe

            Year: 2016 Submodel: GT

            Helpful (10)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            March 05, 2017

            Beast in the garage!

            TBH it's a little loud on cold start: snaps and crackles a bit. I have resorted to leaving the garage door shut in the morning (6am) until the mixture smooths out and it quiets up a bit and that's just starting it without touching the throttle. Beyond that it rocks! Frees up the exhaust being pretty much 2 1/2" straight pipe. Keep in mind the "mufflers" can be mounted in either direction but you want them both facing the same direction. The internal flutes facing forward (same direction as the resonators before the 4" tips) is a little more mellow.

            6Bolt

            Year: 2015 Submodel: GT

            Helpful (8)

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