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American Racing Headers 3 in. Pure Thunder Cat-Back Exhaust w/ H-Pipe (15-17 GT Fastback)

Market Price $1,623.99 You Save 13% ($211.74)
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  • Item 389164

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    Features, Video & Details

    • Deep Rich Muscle Car Tone
    • Pure Thunder Series Chambered Mufflers
    • H-Pipe Included
    • Stainless Steel Construction
    • 3" Mandrel-Bent Tubing (Steps Up from 2.5")
    • 4" Polished Stainless Tips
    • Made in the USA
    • Fits 2015-2017 GT Fastback Mustangs

    Review & Installation Video

    Review & Install Video

    Stephanie with, and this is my review of the American Racing Headers three inch Pure Thunder Catback Exhaust with an H-pipe for 2015 to 2016 Fastback GTs. I'm actually really excited about this Catback. First of all, it's a three inch system that's going to upgrade you from the two and a half inch that you probably currently have. Second, it's stainless steel. I've said it before and I'll say it again, I always put stainless steel on my Mustangs. I won't settle for anything else. Third, and by far the most important factor in my opinion, and probably yours as well, is the sound that this thing provides. When the guys installed it here and fired up the car for the first time, I was relieved to hear such a very deep note that pretty much vibrated the walls. So how does American Racing Headers get that type of sound? Well, it's a combination of a few things. They included the Pure Thunder series chambered mufflers, which is the main culprit, but you also have to remember this H-pipe. The H-pipe is what's going to give you that deeper, richer note, while X-pipes are delivering the raspier sounds. Now personally, I tend to like the deeper sounding exhausts, but it's all a matter of opinion and depends on what you're looking for at the end of the day. On a loudness scale, I'd probably call this a solid three or a four. Another reason why I'm really digging this Catback is because from moment we pulled it out of the box it reminded me of the Corsa stuff, but with a slightly lower price point. We're talking about a bit of a game changer status here, and exhausts that are at the top of the food chain. At this point, exhausts for the 2015 are basically an investment so you really want to make sure that you understand what you're investing in, and make sure that you're getting the best bang for your buck. Well I think this product fits that bill. Just look at the quality here. This system is impressive. Look at the welds, and remember factors like stainless steel, three inch all the way back, so four inch polished stainless steel tips, and I always like to point out when something's made in the USA like this product here is. When we start to think about the install, luckily the new S550s have a little thing called an independent rear suspension, which just so happens to make things like a Catback install a pretty easy task, making this one out of three wrenches on the difficulty meter. You should have no issues bolting this thing up and hitting the road within an hour or two tops. A friendly reminder that this system will only fit your Fastback GT. Once again, I'm really into the American Racing Headers Pure Thunder Catback, here, and for more than one reason. But as always, check this out online, talk about it with others, form your own opinion. I'm Stephanie and I'll see you next time at

    Deep Muscle Car Tone. An American Racing Headers Pure Thunder 3 inch Cat-Back Exhaust will add a deep rich muscle car tone to the sound of your S550 GT Mustang with virtually no high pitch rasp or popping. This American Racing Headers catback not only sounds great, but also improves exhaust flow with the included H-Pipe for an increase in power and overall performance.

    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.

    Quality Construction. Manufactured in the USA from mandrel-bent 3" diameter 304 stainless steel tubing to improve exhaust flow, this American Racing Headers Axle-Back Exhaust System features a H-Pipe and two chambered Pure Thunder Series mufflers with brightly polished 4" adjustable stainless tips, that exit in the stock locations for impressive muscle car looks and sound.

    Direct Bolt-On Install. The American Racing Headers Cat-Back Exhaust with H-Pipe includes all the hangers and clamps necessary to bolt straight up in the OEM factory location without any modifications required, making it a direct fit, bolt-on replacement upgrade.

    Application. This American Racing Headers Pure Thunder 3 inch Cat-Back Exhaust with H-Pipe and Polished Tips is specifically designed to fit 2015-2017 GT Fastback Mustangs equipped with the coyote 5.0L DOHC V8 engine. Not compatible with convertible models.

    Fitment: 2015 2016 2017 Details

    MPN# MTC5-15212CTBK

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Driver Side Muffler Assembly
    • (1) Passenger Side Muffler Assembly
    • (1) Driver Side intermediate pipe
    • (1) Passenger Side intermediate pipe
    • (2) Exhaust Tips
    • (1) H-Pipe
    • (6) Clamps
    Installation Info
    Tech Specs
    Cat-Back Exhaust Specifications
    Piping Material: 304 Stainless Steel Tip Material : Polished 304 Stainless Steel
    Piping Size: 3.0" (steps up from 2.5") Tip Size: 4.0"
    Muffler Type: Chambered Fitment: 2015-2017 GT Fastback
    Will it fit my Mustang?

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    Questions & Answers (1)

    1 Top Rated Question

    Can I bolt this up to my 1-3/4 borla longtubes no problem?

    • These will be able to bolt up to the Borla long tube 1-3/4 headers.

    Helpful (0)
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    Customer Reviews (10) Write a Review

    Overall Rating 4.7

    out of 5 stars

    Installation Time:Afternoon

    • Loudness / Volume 3.8 3.8
    • Exhaust Note 5 5
    • Fit & Finish 4.9 4.9
    • Bang For Your Buck 4.4 4.4

    • 5/5

      Installation Time: Less than 1 Hour

      June 20, 2018

      American Racing Cat-Back

      Very hi quality fit great deep muscle car sound no drone!


      Year: 2016 Submodel: GT

      Helpful (6)

    • 2/5

      June 19, 2018

      Not a 3" Exhaust System

      I returned this immediately because I was looking for a 3" exhaust system. This is only 3" in part of the system then it goes back down in size. I think the description needs to be changed.


      Year: 2017 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      May 17, 2018

      AR SS 3" Thunder Cat Backs

      I was looking for a unique deep tone with a racing growl to it and the AR SS 3" Pure Thunder cat back w/ "H" pipe delivered as promised. The tone just gets better with time. With the low drone and distinctive deep growl, this purchase was a no brainer!!!


      Year: 2015 Submodel: GT

      Helpful (6)

    • 5/5

      Installation Time: Afternoon

      April 24, 2018

      Muscle car sound

      I love this cat-back system. Like most people, I searched long and hard to find the right exhaust note for me. Being an old muscle car guy from the 60's, I don't do raspy. Cannot stand any raspy sound from a muscle car. This cat-back did not disappoint. Beautiful throaty sound when it starts up and when you give it some throttle. Zero drone and very quiet at highway speeds. Was concerned it would be too loud to add headers, but that will be next. ARH hit a home run.


      Year: 2017 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      March 22, 2018

      Great quality system

      Very good quality! The quality of this system is one of the best I've seen. The sound is extremely smooth. It stays together in the higher rpms. On the wake the neighbor scale 1 being stock and 5 being Flowmaster outlaws (which I use to have). I would give it a 2. The sound is great, the only one complaint I would have is that it should be slightly louder. Maybe a set of high flow cats would be perfect with this, in my opinion.


      Year: 2017 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      December 03, 2017

      Absolutely Perfect Exhaust

      I can't begin to explain how much I like this exhaust. I was searching for an exhaust that had no rasp under acceleration and no drone while cruising on the highway and this delivers. While idling, this exhaust has a nice deep rumble like any muscle car should. While cruising around town, the exhaust is not too loud and is definitely fitting for a daily driver. Under heavy acceleration it absolutely roars. My favorite part, however, is the burble on downshifts. All in all, I am very happy with this exhaust. It gives the perfect mix of quiet when you need it to be and loud when you give it gas. Choose this exhaust if you want to hear your car more than stock but not make all of your neighbors hate you.


      Year: 2015 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      May 01, 2017

      Perfect balance between sound and volume

      I have headers and this Catback, and i love it. Its not loud in the car, no drone any any speed, the fit and finish is perfect. Its quiet and good rumble at idle and cruising speed. But when u take off its a head turner, sound is clear no rasp. Amazing system


      Year: 2015 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Less than 1 Hour

      September 28, 2016

      Arh catback review.

      I replaced my mbrp catback with this arh catback and i love the sound. It has deep tone but no rasp or drone at any rpm. Soon i will doing a n/a build which will connect my catted Arh bottleneck eliminator to this catback. The build will involve stage 3 cams a gt-350 intake and tb a circle d 5c converter Jlt cai and many more supporting mods. it will have a sound that will wake the dead!


      Year: 2016 Submodel: GT

      Helpful (7)

    • 5/5

      Installation Time: Afternoon

      April 05, 2016

      Great Unique Tone!

      I have to say the exhaust sounds nothing like the video. It has a unique sound, considerably different than the other systems I've heard and is AWESOME! Low rumble at idle, but at certain RPM's wakes up and much louder under load. The tone is tight, crisp, and very clean. Seems to give the impression that the engine is revving faster than it actually is. Because it's so different than any mustang exhaust the best comparison I can think of is a F-1 or Indy car but not as high pitched. Plain and simple it sounds fantastic. Your car will not sound like any other mustang and no drone.


      Year: 2016 Submodel: GT

      Helpful (8)

    • 5/5

      Installation Time: Less than 1 Hour

      December 21, 2015

      Excellent exhaust for someone who wants a louder daily driver

      This catback came well packed, and everything looked very high quality. The welds were some of the best I've seen on an aftermarket exhaust. Everything fit together easily and quickly, with the total time of unbolting and sliding off the stock exhaust and bolting this one coming in just under an hour. I like that the tips are adjustable, and it was very easy to get everything lined up and centered in the exhaust cutouts. The sound is great, deep low rumble at idle, and cruising around it's almost as quiet as the stock system. There is ZERO drone, and no rasp. When you get on the gas it comes alive and really screams. I feel like this is the perfect exhaust for someone who wants to drive this daily, does not want drone, but wants an exhaust that is louder and meaner sounding than the stock exhaust. I have gotten dozens of compliments on the exhaust since I've put it on. I don't think you can go wrong with this catback. It's also about 25lb lighter than stock for those wanting weight reduction!


      Year: 2015 Submodel: GT Duluth, Ga

      Helpful (10)

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