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

Market Price $1,205.00 You Save 5% ($60.25)
Our Price

$1,144.75

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  • Item 384842
  • MPN# M15CB

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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

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?
  • GT - 15, 16, 17

Not compatible with Convertibles due to different bracing; This Cat-Back is for 15-17 GTs with factory manifolds only.

Most Helpful Reviews

5/5
Holy Exhaust

Spent several hours sampling different exhaust tones online and these were by far the best. They have a nice rasp and are the best you are going to get from a cat back system. I'm paring these with ...

Read More
Helpful (3)

5/5
Speechless

Man this thing sounds amazing. Old school exhaust note with a new school motor is something to marvel at. Zero Rasp and Zero Drone! Stainless works got it right!

Helpful (3)

Overall Rating 4.9 out of 5 stars
Read All 26 Reviews

Customer Photos (4) Submit Your Photo

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10 Questions / 6 Answers

Ask a Question

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

EricS

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

    KevinD92

Helpful (1)

Do they come with clamps?

SonnyM

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

    VincentV

Helpful (0)

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

Josh

  • 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.

    Ricky36

Helpful (0)

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.

kyleS550

  • The BBK Ceramic Long Tube Headers - 1-3/4 in. and this Stainless Works 3 in Retro Chambered Cat-Back Exhaust w/ H-Pipe will connect to each other when using the BBK 3 in. Long Tube Header Adapter Mid Pipe (Item 389770 or Item 389771).

    AMJEFF

Helpful (0)

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?

kyleS550

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

    AMSam

Helpful (0)

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?

Mustang504

  • Unfortunately, the Stainless Works 3 in Retro Chambered Cat-Back Exhaust w/ H-Pipe is specifically designed to fit the 2015-2017 GT Fastback Mustang with the factory exhaust manifold. This Cat-Back will not be a direct bolt on to long tube headers. You will need to do some modifications in order to make these parts work together. We recommend professional installation if you plan to install both of these items.

    AshleyK

Helpful (0)

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Customer Reviews (26) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Afternoon

Installation Cost:$100-$250

  • Loudness / Volume 4.333333 4.3
  • Exhaust Note 4.916667 4.9
  • Fit & Finish 4.833333 4.8
  • Bang For Your Buck 4.458333 4.5



  • 5/5

    Installation Time: Less than 1 Hour

    December 19, 2016

    Holy Exhaust

    Spent several hours sampling different exhaust tones online and these were by far the best. They have a nice rasp and are the best you are going to get from a cat back system. I'm paring these with the SW long tube headers and cannot wait to here them roar! Install time was less than an hour at my local exhaust shop.

    PonyRider89

    Year: 2017 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Less than 1 Hour

    September 14, 2016

    Speechless

    Man this thing sounds amazing. Old school exhaust note with a new school motor is something to marvel at. Zero Rasp and Zero Drone! Stainless works got it right!

    Cpowell

    Year: 2016 Submodel: GT

    Helpful (3)

  • 4/5

    Installation Time: Afternoon

    February 07, 2017

    60's and 70's Muscle car sound

    The pipes sound great. I was not prepared for the loudness. They're not obnoxiously loud but louder that a 3 out of 5 in my opinion. When bolted on mine would not stay centered, so I took them to my local muffler shop and had them welded. Not a problem since. Definitely worth the extra $45.00. I took off 1 star because of the loudness only. I should have researched more but after 2 months of looking and listening to sound clips I took a leap of faith and bought these. I recommend these pipes for looks and note, and if you like them a little loud these are defiantly up your creek.

    BillD

    Year: 2017 Submodel: GT

    Helpful (2)

  • 4/5

    Installation Time: Afternoon

    December 09, 2016

    Exhaust

    The fitment was great compared to other systems i have installed. The quality of the welds were very good. There was a couple pieces of slag that needed to be knocked off in order for the parts to fit together. The tail pipe tips were not quite centered in the openings but a little bending of the

    liberty

    Year: 2017 Submodel: GT

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    June 28, 2016

    Great sounding exhaust, just what I wanted!

    This exhaust wasn't very hard to install. I have never installed an exhaust before and it took me a little over an hour and a half. The not of the exhaust is perfect with a deep sound and not raspy. Also, the exhaust is just loud enough. It isn't so loud that it's obnoxious but sound great when you want it to.

    GlitterFart

    Year: 2016 Submodel: GT

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    September 10, 2015

    Stainless Works 3 inch Catback Exhaust with H-pipe

    This is my first experience with an aftermarket exhaust. I listened to dozens of sound clips and videos from pretty much every manufacturer out there. I knew i wanted something aggressive sounding with a low rumble note and this exhaust delivered! Sounds great when you lay on it. Theres a distinct "gargling" sound when you let off the gas that makes make me smile every time. I have gotten A LOT of compliments from people that walk by my car while im at a stop lights. One guy said "your car sounds like the devil" - Not sure what that means, but I agree. this exhaust is awesome. Looks perfect from behind. With its straight through design, there aren't any mufflers hanging out from the bottom just pipes. Weight savings (22 lbs) too! I do wish the exhaust was more tame in the 2000 - 2200 RPM range. There seems to be some sort of resonant frequency that it passes through in that RPM range. I just got back from a 1000 mile road trip. there is "normal" drone when you accelerate, but if you have cruise control on and are just cruising along you might not even know you had an after market exhaust on. TIP: While on my road trip I tried putting 83 octane in my tank to save a few bucks. it actually made the exhaust quite up a bit (which is nice when you're spending 6 hours in the car at a time.) I have the 2015 Mustang GT PP (black on black) and this exhaust is exactly what I was looking for to complete the mean mustang look. If you buy this you wont be disappointed!

    Jess

    Year: 2015 Submodel: GT Charlotte NC

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    August 22, 2015

    Music to my ears!

    True to it's definition, this exhaust has the purest and best sound in my humble opinion. Had it installed at a local performance shop and took maybe an hour without rushing, looks sleek and at age (i can't drive) 55, this takes me back to the late 1960's ~ early '70's when most every muscle car sounded similar but this is better. Thought my wife would think it was too loud but she loves it. Like a similar review of the same product which helped me decide, it's a "good" loud that doesn't sound rude or over-blown. Already looking forward to matching this to a set of SW Headers soon... "to each their own" as they say but personally I do not like anything raspy so this was the answer - couldn't be happier and you won't be disappointed!

    Phil

    Year: 2015 Submodel: GT Northwest, FL

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    August 07, 2015

    SW 3" RETRO CHAMBERED CAT BACK EXHAUST

    THIS WAS EXACTLY THE NOTE AND SOUND I WAS HOPING FOR WITH MY NEW 15 GT. AGGRESSIVE, THROATY AND DOMINANT! WEIGHT SAVINGS TOO.

    AlexM

    Year: 2015 Submodel: GT PERTH AMBOY

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    June 13, 2015

    Amazing Quality Construction

    From the packaging to the instructions this exhaust system is top shelf. Installation was pretty easy once the factory systems was removed. This system produces a lot of deep tone and sound in the lower rpm range and under load. However, once at cursing speed or above 2,000 rpm the system quiets up to a tolerable level. There's no raspiness, just a deep tone that sounds like non other on the market. Thanks Stainless Works for the RandD you put into it!

    Stang

    Year: 2015 Submodel: GT Lake of the Ozarks, MO

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    April 02, 2015

    Make Your Mustang Sound Like a Battlecat

    After doing a lot of research, I settled on this exhaust kit for my new 2015 GT. In the past, I've had Flowmaster, Borla, Roush, and Pypes kits on my cars. By far, this kit is my favorite. This SW system has a very smooth note. It's loud, but not as loud as a Pypes Pipe Bomb kit but louder than most Roush and Borla systems. It is comparable in loudness to a full catback Flowmaster Outlaw... but it is a loud that isn't offensive... a lot like a great song. It sounds great loud. The sound is refined. Not too high, not raspy at all. It's almost harmonic at low to mid RPM ranges. ZERO interior exhaust drone anywhere in the RPM range. The pitch is low-to midrange at slow acceleration and sounds loud and aggressive during high load, high RPM operation. To describe the overall effect, the car sounds intimidating. When the car winds up, it sounds like a screaming demon... but when you shift, there's a pause where the car growls like a sabretoothed tiger. De-acceleration against a high gear also produces that nice, intimidating growl for when you need to scare a Camaro off the road. The fit went well, taking the shop only 30 minutes to install. I opted to have the exhaust welded in place rather than use the factory provided clamps for no other reason than personal preference. The stainless steel looks great and the tips were packaged well and were not scuffed or scratched during shipping. Out of any exhaust kit I've owned, this one takes the cake. It's loud when it needs to be, but won't wake the neighbors if you need to sneak into the garage at 2 am. The exhaust note is unique and your friends (or competition) won't readily know what you have... but, I'll just say what a teenage girl said to me out the passenger side of her window right after I pulled out of the shop today, "Oh god that thing sounds sick!" I agree... 100x over.

    Laeris

    Year: 2015 Submodel: GT Panama City, FL

    Helpful (2)

  • 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 (1)

  • 5/5

    October 17, 2016

    Cat back exhaust

    Sounds and feels wonderful. Has an aggressive sound. It is a must buy.

    Bird

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    September 26, 2016

    Amazing Sound, Qaulity, Apperance.

    It took almost a year to finally choose an exhaust I wanted that would fit my Mustangs personality and style, and I am glad I chose to go with this one. There are plenty S550s driving around my area, and none sound like this. Its deep, rumbly, sounds great driving around town and even better getting on it. I had my local shop install it because I wanted it welded. He mentioned the fit and install was a breeze. There's no rasp or clapping sounds, just a great harmonic deep muscle sound, which will always put a smile on your face. Start up and idle also sound great, video clips dont do it justice. I had a buddy of mine who runs a powder coat shop coat my tips black as well, which i think is a great touch. Also, one of the best and overlooked aspects of this exhaust is its appearance from the back. Just the pipes and tips, no large ugly mufflers hanging down. Go with this exahust, you wont be disappointed. Also see my uploaded photo.

    bborg03

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    September 12, 2016

    Just what i was looking for!

    You have to hear this exhaust in person! Videos and sound clips don't do any justice. Install was easy in friends garage, the hard part was taking the stock exhaust out. The exhaust note is throaty, old muscle car deep rumble, no rasp, just what i was looking for.

    NKH2016

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    June 29, 2016

    Sounds great

    Fits great, doesn't require any cutting, sound is more like classic muscle car, no drone at all.

    Moe

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    May 20, 2016

    N8ts5.0

    This is truely an amazing system!!! I had been listen to exhaust clips for over a month driving my girlfriend crazy, just trying to find the perfect sound. The stainless works exhaust system was exactly what i was looking for!!! When i drive down the road heads turn. I love it! If your looking for that old school sound this your system you wont be let down...

    Nate

    Year: 2016 Submodel: GT

    Helpful (1)

  • 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 (0)

  • 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 (0)

  • 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 (0)

  • 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 (0)

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