Ford Performance Side Exit Exhaust System Fastback GT 2015-2017

Ford Performance: M-5220-M8
MSRP: $1,219.00
CJ's Low Price:
$1,071.00
1508544000 59140
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Ford Performance Side Exit Exhaust System Fastback GT 2015-2017
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Ford Performance

Product Description

Ford Performance Side Exit Exhaust System for all 2015, 2016 and 2017 Fastback GT Mustangs.

Continue to update your 2015-2017 Fastback GT Mustang by purchasing this Side Exit Exhaust System from Ford Performance. If you aren't satisfied with the restrictive nature of the factory resonator and you loved the quad exhaust setup on 2012-2013 Boss 302 Mustangs and want the same production-quality system for your 2015-2017 Fastback GT Mustang, this is the exhaust system you're looking for!

Features and Benefits:
- Innovative Quad Exhaust Styled After the 2012-2013 Boss 302 Mustang
- Converts the Factory Resonator to an X-Pipe for Increased Efficiency
- True Clamp-on Installation without any Welding
- Installs Using the Existing Front Factory Clamps and Supplied Rear Clamps
- Does Not Affect Axle-Back Exhaust Kits
- Proudly Made in the USA

Kit Includes:
- Driver and Passenger Side Exhaust Pipes
- Polished 304 Stainless Steel Tips
- 409 Stainless Steel X-Pipe
- Mounting Hardware

Ford Performance created their side exit exhaust kit using the highest-quality materials such as 304 and 409 stainless steel for a product that is certainly going to last for years to come. Each system is designed with driver side and passenger side tail pipes, polished 304 stainless steel tips and an X-pipe made out of 409 stainless steel to replace the less efficient factory H-pipe.

Combined with the supplied rear clamps and the existing factory front clamps, Ford Racing's side exhaust is relatively easy to install and does not require any welding for a true clamp-on system.

*Does not fit 2015-2017 Convertible Mustangs.

Please Note: Cutting of the factory exhaust is required for installation.

By buying your Ford Performance (formerly Ford Racing) parts from CJ Pony Parts, you know you are getting your parts from a reliable, reputable dealer. CJ Pony Parts is a Top 10 Ford Performance Dealer and has been for years! When you buy your Ford Performance parts from CJ Pony Parts, you know you have a winning combination of quality and reliability in your purchases.

Order a Ford Performance M-5220-M8 Side Exit Exhaust System for your 2015-2017 Fastback GT Mustang from CJ Pony Parts today!

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Mustang Applications

This product will fit the following Mustang years:

Product Reviews

Write a review
Ford Performance Side Exit Exhaust System Fastback GT 2015-2017 is rated 4.8 out of 5 by 8.
Rated 4 out of 5 by from Wow that's loud!! The exhaust bolted up fairly easily after some cutting. There are two pieces of plastic that are bolted to the bottom of the vehicle that have to be removed or at least trimmed. Not a big deal though. The side tips are barely visible, which is good. This exhaust is VERY loud under acceleration. At start up, the short VROOM sounds super sweet. At cruising it sounds good, almost mellow. Hammer the throttle though and I swear it reminds me of open headers.
Date published: 2015-03-17
Rated 4 out of 5 by from If you want volume and aggression, this is it I just got this installed today (3-21-15). It is LOUD. Its ridiculous at around 2k rpm it sounds as if I'm at the redline on the stock exhaust but only louder. There is a drone while cruising but luckily for me, I installed a small sub so its not too noticeable with that on. But with it off, it is ridiculously loud. Maybe because I haven't driven anything else that loud and maybe cause the 2015 is my first stang ever, I'm not used to how loud and aggressive it should sound. But in terms of quality, it sounds amazing.... I was worried that it would be like all the other "ricers" out there with a big drone, super loud exhaust note only going across an intersection with an ugly tone. It isn't. It sounds super aggressive and way nicer than any "ricer" exhaust note. I am looking for something to quiet it down, because inside that cabin, it is super loud. But when you stomp on that throttle...its pure music to your ears. But when you driving home from work late at night....its bit too much...
Date published: 2015-03-22
Rated 5 out of 5 by from Obnoxious I've had the exhaust on for a month. Exactly what I wanted. It's a little loud for a daily driver but I love to hear it when I'm rolling down the street. Would buy it again
Date published: 2016-03-16
Rated 5 out of 5 by from Can be very loud So bought this system so I can control the exhaust, but before installing the restrictor plates or electric cutouts I decided to run the side exhaust with no restrictions. It is loud, sounds great, but loud. If you are giving it gas you will hear the exhaust, even at highway speeds it is very noticeable. But this should be expected with open pipes dumping out the side. I will make some videos of it open before installing restrictor plates with different diameter holes. In the end I will probably go with the electric cutouts so I can control the system without exchanging plates all the time. The install was very easy, you do need to trim some plastic shield plates under the vehicle for a proper fit, the instructions do not mention this step. The chrome tips had rust spots all over them from where the welding splattered on them from the factory assembly. Was really surprised at how poor they looked for being a Ford Racing product. This is why I rated the appearance low. Not sure it matters because the tips sit so far back under you can only see them on a lift or if you are laying down beside your pony. But anytime you have rust started on metal exposed to weather I am concerned about the longevity of the material. You can tell in the cab that the tips are under the cabin and not at the edge as well. As for the cost, this is about $700 more then just an X pipe, which really is ridiculous when they just adding two side pipes that are maybe 3 feet long each with rusted chrome tips. But this is much cheaper than the Roush Active Exhaust system and can be modified easily to active different sounds. Plus because of the cost few other fellow Mustang drivers have this system so your Pony stands out in the crowd. While the review sounds negative I am just telling you what I observed. Overall I am very happy and got what I wanted. Just wish the rust spots were not there. I will just need to watch that and see if it is an issue that needs to de death with later.
Date published: 2015-10-26
Rated 5 out of 5 by from Boss 302 Sidepipes for 2015GT Sounds exactly like my Boss 302 which is the sound I was after, I'm happy with the sound!
Date published: 2015-06-20
Rated 5 out of 5 by from Great Sound Just completed installing the exhaust and it sounds great even with the stock mufflers. I would have been happy to stop there however I already had the new axlebacks(FR Sport) and did install them. The combination is incredible . The X pipe install was easy and parts fit well. I did have to trim a little off plastic mud deflectors near where they exit.
Date published: 2015-01-23
Rated 5 out of 5 by from Side exhaust review Great improvement in sound. Installation is not very difficult but with Borla ATAK catback system the x-pipe needs to be trimmed down
Date published: 2017-07-01
Rated 5 out of 5 by from Very Nice sound! I realy like how this thing sounds :) very easy installation.
Date published: 2017-05-04
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Product Questions

Do the baffles that fit the 2013 boss also fit this 2015-2017 setup?

Asked by: limer2
We have not tested that and the vendor has made no mention of that being the case.
Answered by: CJPP Dave
Date published: 2017-10-13

Will this system fit a UK Spec GT and can I use the stock mufflers for the two rear exit exhaust pipes or would you recommend putting less restrictive mufflers for the two rear exhaust pipes?

Asked by: millepilot907
Yes, this will fit your application and you can use the rest of your factory exhaust. I would strongly recommend stepping up to at least a set of touring axle-backs to help open up flow a little bit more.
Answered by: CJPP Dave
Date published: 2017-10-13

What exactly restrict me on putting this system on a convertible s550?

Asked by: KPY4EHET111
The vendor has not provided any information regarding cross-fitments of this part to any other model then what is listed.
Answered by: rk cjpp
Date published: 2017-10-06

Dave, Does the kit come with restrictor/baffle plates? Since the pipe size (2.75) is the same as 2013 Boss, what is your opinion that restrictor/baffle plates available for the 2013 model may fit. I'd like the option to tone it down a bit if too loud.

Asked by: limer2
No, it does not come with any restrictors or baffles. We haven't test fit the '13 Boss restrictor/baffle in these but I assume they would be extremely similar. Those plates are incredibly easy to make if you need to, thus giving you the option to fine tune your sound.
Answered by: CJPP Dave
Date published: 2017-08-22

Do you do over the counter sales?

Asked by: limer
Yes, at our Harrisburg, PA location. If we have the item in stock you are more than welcome to stop by our showroom and purchase items at our front counter.
Answered by: CJPP Dave
Date published: 2017-08-21

Will this exhaust work with the Steeda IRS subframe support braces & jacking rails? That is, do the jacking rails/subframe supports use the mounting holes needed to secure the side pipes?

Asked by: ouij
We have not tested all of those parts together.
Answered by: CJPP Dave
Date published: 2017-08-15

I have a 2016 Mustang GT and I installed the GT350 rear valence and matching quad tip FRPP Sport Catback + x pipe. Would it basically just replace my x-pipe? Is the diameter the same as the FRPP Borla X Pipe? Thanks.

Asked by: hulk_smash
Although the diameter is the same I believe, this will not just simply replace the x-pipe that you currently have on the GT350 combo. It will require some minor modifications in order to work, but any competent exhaust shop should be able to easily make that happen.
Answered by: CJPP Dave
Date published: 2016-12-12

I own a 2015 Roush Stage 3 currently equipped with the quad-tipped borla exhaust (factory) from Roush.  I have always been interested in the side mounted exhaust but would like to know how it'll affect set up and will I get the loud idle/throttle I want.

Asked by: Dave Superstang
This will definitely provide you with a louder idle and overall sound.
Answered by: CJPP Dave
Date published: 2016-10-11
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Product Video

Ford Performance Side Exit Exhaust System Fastback GT 2015-2017 Video Transcript
By Bill Tumas: We’re here with Ford Racing's side-pipe exhaust kit fitting your 2015 Mustang GT Fastback.

If you love the look and sound of the side-pipe kit on the 2012 through 2013 Boss 302, this is the perfect choice for your 2015 Mustang GT Fastback. Starts off with a true x-pipe, replaces your heavy factory resonator. This has to be cut in place and includes everything necessary for installation. The entire pipe is made of 409 stainless steel going out to the side-pipes, ending up in a set of polished 304 stainless steel tips.

This resonator delete Boss 302-style side-pipe kit will work with any axle-back exhaust system and is made in the USA.