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

Item 389030
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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

    MPN# 19100

    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) 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-throughFitment:2015-2017 GT
    Will it fit my Mustang?

      Customer Photos (14) Submit Your Photo

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        Questions & Answers (16)

        5 Top Rated Questions

        I am looking for a upgrade to make factory exhaust and I like both this Magnaflow Street cat-back and the American Thunder cat-back which system would give me a nice deep tone while keeping the system on the quite side, and which one is quieter?

        • Both of the exhausts will be similar in overall volume, and the Magnaflow Street cat-back would make a great choice if you are looking for a nice deep tone without making it too loud.

        Helpful (4)

        Is this system quitter than the stock exhaust?

        • This exhaust is going to be an increase in sound over the stock exhaust.

        Helpful (2)

        is this exhaust 50 state drive by noise legal?

        • Unfortunately, this Magnaflow catback exhaust system is not going to be 50 state drive by noise legal. We do recommend checking with your local shops/laws to see what exhaust systems would be allowable.

        Helpful (2)

        Maybe i should have asked my last question a different way. What long tube catted headers will fit the magnaflow street system? I want to use stainless works. Any ideas?

        • The Magnaflow Street Cat-Back Exhaust will work with the Stainless Works Catted Long tube Headers.

        Helpful (1)

        is the part number the same for the convertible as the fastback ? my mustang: 2016 GT Convertible.

        • The Magnaflow Street Cat-Back Exhaust will have the same part number for both models yes.

        Helpful (1)
        Post Your Question
        10 More Questions
        Is this exhaust quieter than the MBRP Race? I am looking for a quieter catback exhaust. 1 answer
        In an above question you mention it will pass CARB in California. What is the EO or executive order testing number? 1 answer
        Is there drone at highway speeds 1 answer
        will this muffler system fit my new 2016 Mustang convertible GT? 1 answer
        I have a 2017 GT with a PD supercharger. Currently running Flowmaster American Thunder axle back with Flowmaster Scavenger X-pipe. The drone is unbearable making the car very unpleasant too drive. Will I have the same issues with this system as the Flowmaster? 1 answer
        Do you have to add a new tune to the car after adding the new exhaust? One of the videos shows an error light on the dash, is this hidden info in plain sight? 1 answer
        Can you pair with roush axle back? 1 answer
        How would this exhaust system butt up to a set of long tube headers. Would I have to modify the x pipe to fit or should it seat well with a set of long tubes? 1 answer
        Do you sell the street mufflers by themselves? 1 answer
        Will this exhaust system pass the California smog test? 1 answer

          Customer Reviews (41) Write a Review

          Overall Rating 4.7

          out of 5 stars

          Installation Time:Full Day

          Installation Cost:$100-$250

          • Loudness / Volume 3.825 3.8
          • Exhaust Note 4.925 4.9
          • Fit & Finish 4.65 4.7
          • Bang For Your Buck 4.525 4.5



          • 4/5

            Installation Time: Afternoon

            October 04, 2019

            Great looking and sounding exhaust

            This exhaust is much quieter than the glass packs with H pipe that were previously installed. It has a great low rumble, and nice tone when the revs increase. It is a little quieter than I was expecting, so no worries if you are wondering if its too loud. Not at all. Overall a great sounding and high quality exhaust! A little too pricey for me to give that 5th star though.

            EricHa

            Year: 2017 Submodel: GT

            Helpful (0)

          • 5/5

            Installation Time: Afternoon

            September 07, 2019

            Awesome Exhaust

            Love the sound of this exhaust. Not to obnoxious. Very happy with this system for my wife’s 2015 GT.

            Gonzo

            Year: 2015 Submodel: GT

            Helpful (0)

          • 3/5

            Installation Time: Afternoon

            July 15, 2019

            Sounds great but fitment issues

            This system is designed to fit both the fastback and convertible models. Overall quality of materials was very good including the polished mufflers and exhaust tips. Installation was generally easy and straight forward and comparable to other systems I have installed. However, the hangar rod on the left muffler was not welded in the correct position causing the exhaust tip to be about 1.5 inches low when placed in the stock hangar mount (note: the right side muffler was correct and fitted up perfectly). My solution was to cut the hangar rod and re-weld it in the correct position. Not a big deal but shouldn't have to do this with a premium cost system, thus the 3 star rating. Sound is great, just as expected.

            Jim

            Year: 2016 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            February 17, 2019

            Perfect upgrade

            Was looking for a great sounding exhaust upgrade that wasn't too loud. This fit the bill perfectly for my 2015 Mustang GT convertible. Great tone, gets loud enough when you get on it.

            TroyM

            Year: 2015 Submodel: GT

            Helpful (3)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            October 10, 2018

            Muscle car rumble without making a scene

            I'm exceptionally pleased with how my 2017 GT sounds now. It definitely ups the ante regarding idle purr and across the board, but not in an obnoxious way. The sound is just loud enough, and I can't imagine getting anything that's twice this loud like some of the other products for sale (unless that's your thing). I had it professionally installed along with the Ford Racing Pack 3 (plenum and CAI), and overall that took about 2.5 hours. I'd consider this system a must-do if you're looking for a more muscle car sound! Also the tips look amazing.

            ThomasB

            Year: 2017 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            August 09, 2018

            Just the right amount of rumble....

            Originally purchased a Magnaflow Foose exhaust for my wifes 50th Anniversary Mustang GT. Unfortunately, that muffler proved to be defective (started rattling after a few weeks), but AM worked with me to get another exhaust, but this time went with the Street. The note is exactly what we were looking for, a nice deep rumble to let everyone know you're sporting a powerful V8 under the hood, and enough bark when you get into the "go pedal". The large tips fill out the rear valance cutouts perfectly, and the system looks great underneath. All in all, very pleased with this system.

            KF

            Year: 2015 Submodel: GT

            Helpful (7)

          • 5/5

            Installation Time: Afternoon

            July 25, 2018

            Perfect

            This exhaust far exceeded my expectations. The sound is nothing short of amazing. Easy install. No drone, you can hardly tell it's aftermarket until you really get on the go pedal. This kit was everything I was looking for. 10/10 would recommend.

            ShawnV

            Year: 2017 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Less than 1 Hour

            July 15, 2018

            Easy flow

            This Cat-Back is awesome. Just so easy to install and the sound is just perfect. Not too loud inside or out but the rumble is there for sure. Removed sound tube and plugged the hole. Did not need that anymore after putting on the Magnaflow.

            JefferyP

            Year: 2016 Submodel: GT

            Helpful (14)

          • 5/5

            Installation Time: Afternoon

            June 28, 2018

            Easy install, good change of exhaust note

            As expected, this was an easy install. The only thing that took any appreciable time was getting the exhaust tips to line up and center just right. The exhaust note is deeper, and a little louder than stock - which is exactly what I wanted.

            Mike

            Year: 2016 Submodel: GT

            Helpful (8)

          • 5/5

            Installation Time: Afternoon

            May 15, 2018

            First Exhaust!!! AWESOME

            I wanted something that sounded tough but didn't want to sound annoying when going through the neighborhood. I love the growl of the exhaust. Not the loudest, but perfect for me.

            GilbertG

            Year: 2017 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Afternoon

            April 18, 2018

            Sweet Growl

            I just put the Magnaflow street cat-back exhaust on my 2017 GT. I did the installation by myself by using a jack and stands to support the old system. Yes the install went smoothly as well. Everything liked up well and no problems whatsoever. The mufflers are polished to a chrome like finish with the Magnaflow logos. The tips are like chrome and look fantastic. When I fired it up, I could not wipe the grin off my face. It has a wonderful deep sound and growl to it that is just what I was looking for. Im 67 and it reminded me of my old 67 Camaro SS. Cant wait for my cold air intake and tuner to arrive next. And probably a new set of rear tires soon....

            RonA

            Year: 2017 Submodel: GT

            Helpful (9)

          • 5/5

            March 19, 2018

            Easy and sounds good

            Was looking for classic mussel sound but not crazy loud ! I have a magnaflow on my raptor and it sounds good so I went with the same on the mustang. We are very happy with it. Sounds like it’s supposed to now! Very easy to install! Did it myself but I happen to have a lift in one of my garages so that makes it easier! Took about an hour.

            ScottV

            Year: 2015 Submodel: GT

            Helpful (4)

          • 4/5

            Installation Time: Shop Install

            Installation Cost: 0-$100

            January 21, 2018

            Good choice

            I’ve had Magnaflow exhausts on some of my other cars over the years, that’s the main reason I picked them for my ‘16 GT convertible. Glad I did. They are louder than stock and drone a bit between 1000 and 2000 rpm, but have a nice deep growl above that. Fit and finish are superior to the others I looked at. I have a CAI also and, with the exhaust, the car really wakes up when driving. I have ‘t done any dyno comparisons however my butt dyno says it’s noticeable. On a sunny day, with the top down, it makes for an excellent driving experience.

            BillH

            Year: 2016 Submodel: GT

            Helpful (9)

          • 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 (14)

          • 4/5

            Installation Time: Less than 1 Hour

            September 14, 2017

            Love the sound

            Realy nice deep rumble sound Not to loud but a little more would have been better i think.

            PascalD

            Year: 2016 Submodel: GT

            Helpful (8)

          • 5/5

            Installation Time: Less than 1 Hour

            September 05, 2017

            V8

            Now it sounds like the kind of car it is. Stoked !!

            BentonD

            Year: 2017 Submodel: GT

            Helpful (5)

          • 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 (9)

          • 5/5

            Installation Time: Shop Install

            Installation Cost: $100-$250

            July 09, 2017

            It's Alive!

            This is a great exhaust when it comes to for and finish. Getting rid of the factory suitcase brought the car to life. I'm not worried about letting cops know I'm a mile down the road with this catback and it sounds great rowing through the gears. A catback is an essential upgrade for any S550 and I definitely recommend this one.

            MichaelC

            Year: 2017 Submodel: GT

            Helpful (4)

          • 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 (11)

          • 2/5

            Installation Time: Afternoon

            July 01, 2017

            Mustang Al

            great product did exactly what I wanted .Great sound during take off but no drone at cruising speed.

            Axcell

            Year: 2016 Submodel: GT

            Helpful (8)

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