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Magnaflow Street Cat-Back Exhaust (15-17 GT)

Market Price $1,644.75 You Save 32% ($523.33)
Our Price

$1,121.42

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  • Item 389030
  • MPN# 19100

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Features, Video & Details

  • Classic Muscle Car Sound
  • Street Series Muffler - Straight-Through Design
  • Durable Stainless Steel Construction
  • 3" Mandrel-Bent Tubing
  • 4.5" Polished Stainless Tips
  • Fits All 2015-2017 GT Mustangs, Including Fastback and Convertible

Review & Installation Video

Review & Install Video

Hi everyone. Justin with americanmuscle.com. I'm going to be taking a closer look at the Magnaflow Street Catback Exhaust System fitting your 2015 Mustang GT. Now before we start breaking down the Magnaflow, I want to remind you guys to subscribe to our YouTube channel, if you haven't done so already, for more exhaust overviews and sound clips in addition to other great Mustang content. So the Street Catback from Magnaflow is just that, a perfect exhaust for the street for those of you looking for a little bit more power and sound out of your 2015 GT, or want an exhaust that you can live with every day. Now with that being said, the Street Catback probably won't win you any muffler revving contest in regards to overall volume. And if that's something you're concerned with, then you might want to check out the Competition Series Catback instead, also from Magnaflow. Either way, if you want to hear what more 2015 owners are saying about this very exhaust, then click on the link below to head back to our product page at americanmuscle.com. if you're not there already. The Street's Classic 30 muscle car rumble is made possible thanks to the slightly more traditional chambered mufflers and brightly polished four-and-a-half inch tips. Now, this entire system has been constructed from 100% stainless steel including the three-inch mandrel-bent tubing, the included crossover or X-pipe, which takes place of that suitcase known in the factory exhaust system, and finally, these chambered mufflers which I just talked about. Now it is also worth mentioning that this system is considerably lighter when compared to your factory exhaust. So besides that nice little benefit of power and sound, you can also expect to shave roughly 30 pounds from your factory exhaust. Removing your factory exhaust and installing the new Magnaflow will be made much easier here in the 2015, thanks largely in part to these cars being independent rear suspension, meaning you won't have to mess with the over axle pipes. So that being said, removing that factory exhaust and getting this thing bolted up should only take you about two hours from start to finish using basic hand tools. Now it's time to hear how the Magnaflow Street Catback sounds compared to our factory exhaust.

Free Flowing Exhaust. Magnaflow delivers the ultimate exhaust for the 2015-2017 S550 GT Mustang with their Street Cat-Back Exhaust. By reducing back pressure for a free flowing exhaust, this catback produces more power and torque where it belongs - at the rear wheels.

Classic Muscle Car Sound. Give your coyote powered 2015-2017 GT the deep, classic sound it deserves with a Magnaflow Street Cat-Back. The included Street Series Mufflers feature a free-flowing, straight-through perforated stainless steel core, with stainless mesh wrap and acoustical fiber fill to deliver that smooth, deep muscle car tone.

Magnaflow Quality. Constructed from durable 3" diameter mandrel bent stainless steel tubing for it's corrosion resistant properties, this Magnaflow Cat-Back features two Street Series mufflers with brightly polished 4.5" stainless tips, that exit in the stock locations for impressive muscle car looks and sound.

Application. Made to be a direct bolt on, this Magnaflow Street Cat-Back Exhaust will bolt straight up to the factory Mid-Pipe without any extra modifications required on both Fastback and Convertible 2015-2017 GT Mustangs.

Note: Coupon codes cannot be applied to this product.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Right muffler assembly
  • (1) Left muffler assembly
  • (1) Right tailpipe assembly
  • (1) Left tailpipe assembly
  • (4) clamps
Installation Info
Tech Specs
Cat-Back Exhaust Specifications
Piping Material: Stainless Steel Tip Material : Polished Stainless Steel
Piping Size: 3" Tip Size: 4.5"
Muffler Type: Straight-through Fitment: 2015-2017 GT
Will it fit my Mustang?
  • GT - 15, 16, 17

Fits both Fastback and Convertible models

People Who Bought This Item Also Bought

Most Helpful Reviews

5/5
Quieter for sure

I marginally purchased the Magnaflow Competition exhaust system, but quickly realized they were very loud on the highway, at 70 miles an hour. With that being said I ordered the Street Cat-Backs and had ...

Read More
Helpful (7)

5/5
Great product

I went with this product because I didn't want to attract too much attention when driving down the streets. The videos don't do it justice, it sounds perfect! To me it still sounds loud but not over the ...

Read More
Helpful (6)

Overall Rating 4.7 out of 5 stars
Read All 28 Reviews

Customer Photos (9) Submit Your Photo

View All 9 Photos

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9 Questions / 5 Answers

Ask a Question

Is this exhaust quieter than the MBRP Race? I am looking for a quieter catback exhaust.

DavidR

  • The Magnaflow Street Cat-Back Exhaust would be quieter than the MBRP race cat-back yes.

    Ricky36

Helpful (1)

In an above question you mention it will pass CARB in California. What is the EO or executive order testing number?

JaymeK

  • The Magnaflow Street Cat-Back Exhaust installs after all OEM emissions equipment, making this exempt from CARB standards.

    Rob D

Helpful (0)

Do you sell the street mufflers by themselves?

RyanC

  • Unfortunately we do not carry the mufflers included in the Magnaflow Street Cat-Back Exhaust separately.

    AMJEFF

Helpful (0)

Will this exhaust system pass the California smog test?

ChuyL

  • This exhaust will pass the current regulations of CARB and smog yes.

    Ricky36

Helpful (0)

Is there drone at highway speeds

Silverrod

  • Our customers report little to no drone with the Magnaflow Street Cat-Back Exhaust at highway speeds.

    VincentV

Helpful (0)

What is the correct orientation of the mid pipes? Do the hangers come off the top or the bottom of the mid pipe when installed? I can see both ways in the customer pictures. The product picture shows them coming off the top

WayneL

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Customer Reviews (28) Write a Review

Overall Rating 4.7

out of 5 stars

Installation Time:Full Day

Installation Cost:$100-$250

  • Loudness / Volume 3.925926 3.9
  • Exhaust Note 4.962963 5.0
  • Fit & Finish 4.62963 4.6
  • Bang For Your Buck 4.481482 4.5



  • 5/5

    Installation Time: Less than 1 Hour

    January 06, 2017

    Quieter for sure

    I marginally purchased the Magnaflow Competition exhaust system, but quickly realized they were very loud on the highway, at 70 miles an hour. With that being said I ordered the Street Cat-Backs and had an immediate difference noted. I still have the deep throaty sound that I want and can only get with Magnaflow. I get the great sound I want without the internal drone I was getting with the Competition Cat-Backs on the highway. Magnaflow....the only way to go...

    SR

    Year: 2017 Submodel: GT

    Helpful (7)

  • 5/5

    Installation Time: Afternoon

    November 11, 2016

    Great product

    I went with this product because I didn't want to attract too much attention when driving down the streets. The videos don't do it justice, it sounds perfect! To me it still sounds loud but not over the top! Great product, easy to install!

    Ish

    Year: 2016 Submodel: GT

    Helpful (6)

  • 2/5

    Installation Time: Afternoon

    October 05, 2017

    One Size Fits All Causes Issues

    If you look at the description, you'll see that this cat-back fits both fastback and convertibles. For other systems, you will noticed they are designed for one or the other. This means the rear tailpipes are fabricated to accommodate for the extra bracing the convertible has and fastback doesn't. This "one size fits all" design causes issues with fastbacks that have the rear sway bar (as in my case). The driver side tailpipe was making constant contact with the rear sway bar and causing vibration throughout the vehicle. I had to submit a warranty claim as this is an issue I shouldn't encounter in a product that costs this much. Sounds amazing - but, major fitment issues as described.

    Jeff

    Year: 2017 Submodel: GT

    Helpful (4)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    July 21, 2017

    Perfect!

    I had been looking at different cat-back systems and always came back to Magna Flow which I eventually ordered and installed. The tailpipes look amazing, they are high quality, and the sound is perfect - low but not excessively very loud! Totally pleased with my choice!

    VictorSWallace

    Year: 2017 Submodel: GT

    Helpful (3)

  • 4/5

    July 06, 2017

    Problems with fit

    Clearance on the drivers side making contact with rear sway bar caused vibrating sound sometimes when turning. Fixed it by wrapping sway bar with a high temp wrap. Did have professional install.

    DavidL

    Year: 2015 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Afternoon

    February 04, 2017

    Perfect GT 5.0 match

    Did a lot of research to make sure it ended up being exactly what I wanted. The demo's help but it was still hard to get the real sound. This match was perfect for my 5.0 with very little resonating sound inside. I installed this by myself (seriously), with a little planning, in about two hours. Quality design and fit. Make sure you re-torque after about two hours of drive time.

    ChrisW

    Year: 2016 Submodel: GT

    Helpful (3)

  • 5/5

    Installation Time: Afternoon

    March 24, 2017

    The perfect pipes

    Could not be happier with the quality and sound of this exhaust system. Just the right amount of growl without being obnoxious. Nice sound at highway speed.

    StephenK

    Year: 2017 Submodel: GT

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    January 20, 2017

    Great classic sound, not too loud, just right

    I was afraid to ruin the relaxing cruise aspect of my 2015 GT with a catback that was too loud/too raspy etc. I spent a lot of time listening to various videos of exhaust and I decided on the Magnaflow Street Catback. Sounds really good at startup and under load does not sound raspy (from the cockpit anyway). Using C weighting on a Radio Shack SPL meter, with the windows up: idle is about 59-60 db. Cruising home tonight I was seeing 75-80 db at 65-70 mph depending on how much the engine was pulling up hills etc. I didn't measure before the install. I can say it is louder and there is just a hint of drone around 1900 rpm, but really in tone only as I could easily talk over it. All in all I'd say it's aggressive enough without being so loud that you start to dread driving to work etc. The engine seems to be much happier too and I think there's a bit more scoot. Money well spent to get a classic muscle car to sound like a classic muscle car.

    jwg

    Year: 2015 Submodel: GT

    Helpful (2)

  • 5/5

    Installation Time: Less than 1 Hour

    April 21, 2016

    Magnaflow hit a home run

    I tried doing a catback on a budget and it was a wasted exercise, plus the system I chose first was obnoxious. My 2015 is a Convertible and an overly loud exhaust can ruin the drop top experience. Magnaflow came to the rescue. I love the street system on my vert. It's substantially louder than stock, yet not obnoxiously so. It actually sounds so good that I look forward to driving the car every day. Install was a breeze and the tips are spectacular. They fill the cutouts on the rear facia nicely and look super.

    Mike

    Year: 2015 Submodel: GT

    Helpful (2)

  • 5/5

    Installation Time: Afternoon

    February 09, 2016

    Excellent Exhaust Note

    Installed this myself on my 2015 convertible, installation is a little different for a convertible due to the bracing bolted on below the exhaust, but other than that I followed an installation video for the Magnaflow competition exhaust. The sound is fantastic, nice deep rumble that I love and it's a little louder than the stock exhaust without being too crazy. Definitely an excellent addition to my Mustang.

    Mike

    Year: 2015 Submodel: GT Lynnwood, WA

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $100-$250

    August 28, 2015

    Ready to Sound Off

    This is the first time I used Magnaflow exhaust systems. The garage had it installed in about hour on my 2015 GT. George who owns the garage in Linden, NJ can't get over how it sounds and looks out the back. He owns a few Mustangs himself and is thinking about a 2016 GT350. I'm very pleased with the way it sounds as you shift through the gears! The Stang is orange w/a black double stripe from front to back. Thank you "American Muscle" Irv

    wixman

    Year: 2015 Submodel: GT New Jersey

    Helpful (2)

  • 5/5

    Installation Time: Shop Install

    June 20, 2017

    Magnaflow catback

    Nice sound without being obnoxious. Excellent quality

    AaronM

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    March 15, 2017

    Perfect Muscle Car Sound

    The Magnafow street cat backs sound perfect for my 2015 GT. Initially I had the MF competition cat backs. They sounded fine until I had long tube headers installed. That was just too loud for my tastes, so the street version went on and I couldn't be happier. Wish MF sold just the mufflers though. It would have saved some $$.

    HarryG

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    November 07, 2016

    Perfect exhaust

    Sounds great on startup and idle. Perfect growl under normal driving conditions. No drone!!!

    Navyjack

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    October 17, 2016

    Great option..

    I originally installed the Magnaflow Competition series and really liked the way it sounded at idle while outside the car. However, the exhaust drone was so loud I ended up putting a pillow and some 2" thick sound absorbing panel in the trunk. It helped a little while driving but my neighbors still heard the full effect. After a few noise complaints I decided to go with this Street version and it is the perfect median with little or no "drone". Perfect fit and finish!!

    EleanorWannaBe

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    July 07, 2016

    JUST THE RIGHT TONE

    I INSTALED THE MAGNAFLOW STREET CAT-BACK EXHAUST ON MY MUSTANG . I WAS TOLD THE SOUND WOULD BE LIKE OLD SCHOOL MUSCLE CAR AND IT SOUNDS GREAT. THE CAR COMES TO LIFE WITH JUST A PRESS OF THE START BUTTON. THIS IS WELL WURTH THE MONEY.

    WIZARD63

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    May 18, 2016

    very satisfied with magnaflow street catback exhaust system

    I would recomend this exhaust system, it makes the car run @ sound better. Don Robertshaw

    Don

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    May 16, 2016

    Great look and sound!

    I struggled between several of the catback a offered here at American Muscle. I wanted something that would give me that low grumble, make some noise but not irritate the neighbors. The MagnaFlow Street check all boxes. The sound is so sweet and when you want to make it roar just drop that peddle. Very happy with this system. Immediately noticeable change in power after dropping the extra weight and opening up the flow!

    Vetdog

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    January 16, 2016

    great exhaust

    Great product video's do not do it justice nice deep tone at idle, not too loud highway driving but can clearly hear going thru gears, very glad I DID not go more aggressive on exhaust would recommend this to any Mustang owner who wants a nice rumble without being too aggressive

    john

    Year: 2015 Submodel: GT golden,co

    Helpful (1)

  • 5/5

    Installation Time: Less than 1 Hour

    August 02, 2015

    Great Product

    Magnaflow exhaust has amazing quality and welds. Tips and mufflers are polished and very shiny, way better look than Roush axleback. If I was to purchase again, would buy the competition or race series. Quality is great and sound is deep with little drone and definitely opens up after higher Rpm's. 5 out of 5 stars.

    dnuesse

    Year: 2015 Submodel: GT O'Fallon, MO

    Helpful (1)

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