MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback GT 2015-2017

MBRP: S7277409
MSRP: $815.28
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MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback GT 2015-2017
MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback GT 2015-2017 Play MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback GT 2015-2017 Video 1 Play MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback GT 2015-2017 Video 2

Product Description

MBRP Stainless Steel XP Series 3" Street Cat-Back Exhaust System for 2015, 2016 and 2017 Fastback GT Mustangs.

So, you just picked up your brand new 2015-2017 Fastback GT Mustang from the dealer, and upon starting up your new pony, you realize she is way too quiet. Well, don’t fret! MBRP has recognized this tragedy is a common problem for Mustang owners and released their brand new Stainless Steel XP Series 3" Street Cat-Back Exhaust System to solve the issue!

Features and Benefits:
- Tame, Yet Pronounced Street Version
- Large 3” T409 Stainless Steel Piping for Maximum Flow
- Polished 4-1/2” Tips for Head-Turning Style
- Utilizes Included H-Pipe for Aggressive Tone
- 100% Bolt-On Installation

*Will NOT fit convertibles.

An MBRP performance exhaust system is the starting point to getting the most from your cold air intakes, tuners and other bolt-ons. Paired with a set of longtube headers, this system will not only sound amazing, but also show immense power gains. Aiding in those power gains is a high-flow H-Pipe and large 3” mandrel-bent stainless steel piping all topped off with flashy 4-1/2” polished tips.

Installation is a breeze with a lift and not too bad with a jack, considering it’s a 100% bolt-on installation with basic hand tools. MBRP designed this exhaust system with longevity in mind considering it features rugged 16-gauge T409 stainless steel construction that will withstand whatever the road throws at it. Right out of the box, this cat-back system is polished to give off a show quality mirror finish to match the tame, yet pronounced exhaust tone.

The 5.0L Coyote engine from Ford has been around for a few years and makes a huge amount of power, but the exhaust note just isn’t there to back up the powerhouse that lies under your hood. This cat-back system from MBRP will take your S550 to the next level without making your ears ring. The exhaust notes of this particular system are subtle and civilized during normal driving, but quite aggressive when your gas pedal hits the floor.

Order MBRP’s Stainless Steel XP Series 3" Street Cat-Back 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
MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback GT 2015-2017 is rated 5.0 out of 5 by 18.
Rated 5 out of 5 by from Great sound, deep tone! the sound of this system is beyond my imagination! Good quality! It has a deep tone when starting and below 3000 rpm. however, it go very aggressive when rev. Exactly what I need! A little bit drone when cruising around 1500-2000, but you can only notice it when the music is off.
Date published: 2015-02-28
Rated 5 out of 5 by from Most amazing I installed MBRP system a little over a week ago. They exceed my expectation's , the quality and fit is perfect. Very easy to install and they sound great. Nice deep tone but doesn't sound loud in car going down at highway speeds. I recommend watching the CJ pony parts video on youtube it is very accurate and helpful.
Date published: 2015-03-20
Rated 5 out of 5 by from Outstanding Great sounding exhaust. Basically no drone. Louder than stock for sure, but not to loud. Deep H-Pipe rumble on start. Screams like a demon above 5000 rpm. I love it. Makes me smile every time I start the car.
Date published: 2015-06-11
Rated 5 out of 5 by from great exhaust, shame on UPS Let me begin by saying that the H-pipe arrive quite bent at the ends. This was 100% the fault of UPS, the packaging arrived in very poor condition. This is a common complaint I've found on many sites including CJ PonyParts upon receipt of heavy exhaust parts through the mail (UPS, FEDEX, USPS, whatever). I pulled out the dents using hand tools without a problem (I am a biology researcher with a Ph.D. and not a mechanic, if I can do this anybody can). I looked at a lot of aftermarket exhaust options. I choose 409 stainless steel with the lifetime warranty, I think it's worth the 10% cost difference over the aluminized steel and blacked out versions. I choose the MBRP catback due to the ease of installation (completely bolt on, no cutting or modifications), positive reviews for sound (here and other sites), and cost (~30-50% the cost of Ford Racing among others). I followed the video instructions by Bill and also performed the final adjustments as per the instructions from MBRP. The systems was really a simple install. As stated in the video, the hangers hang by hooks and do not need to be immediately bolted down. I performed the work at the Auto Skills center at the Hanscom Airforce Base near Bedford, MA. The exhaust is beautiful! The polished tips are huge! The sound is great! Moderately loud rumble upon initial ignition of the cold engine which subsides after ~30sec. With the engine warm, the exhaust is pleasant at idle but you can definitely tell it is aftermarket with a great deep rumble. The exhaust is much louder upon acceleration becoming outright aggressive above 3k.
Date published: 2015-05-02
Rated 5 out of 5 by from Incredible Sound, Slightly louder than expected I had this installed earlier today at my local Ford dealer and the sound was absolutely incredible (interesting note- the mechanic who installed it said it was one of the best he had heard yet, and them being one of the largest dealers in the country, he had installed and heard most of the new exhaust systems). However, the exhaust was much louder than I thought it would be once you get to the higher RPM range (stood behind it while a friend revved my car and it actually hurt my ears a bit). Not a big deal, but just a heads up for anyone worried about being too loud. There is a great purr under light acceleration, and it really roars when you put your foot down. At highway speeds there is no drone (or at least you can't hear it over the other sounds you generate at those speeds), but you will be able to hear it at (pretty much) all times during city driving, which I consider a good thing. Overall, I am incredibly happy with this purchase, and would recommend it to anyone who wants that loud and proud muscle car roar. Also (could be caused by the person who installed it, I am calling them tomorrow about this), the right side exhaust tip is making contact with the plastic part around it. Not a big deal, but it makes the exhaust look a little uneven.
Date published: 2015-07-23
Rated 5 out of 5 by from Great Value I bought this system toward the end of August. Delivery took less than a week and I live on the West Coast. The system was packed very neatly and UPS took very good care of the box. I had the system installed at a local automotive repair shop. As these guys have nevered worked on a mustang before I had to help by telling them what needed to be removed and in what order. But thanks to the video from CJ Pony Parts, I was able to show them exactly how to install the system. It was extremely easy, wish I could have done it myself but no tools or facilities where I'm currently living. The system sounds incredible. Deep rumbling but not too loud. Love the way it sounds and there is no drone at 1500 rpm, highway speed. But when you get on it, sounds good from inside the cabin. Great value for half the cost of a Magnaflo or Ford Racing and in my opinion sounds better.
Date published: 2015-09-03
Rated 5 out of 5 by from Awesome V8 Sound Loved the v8 sound from the full system without being too loud .
Date published: 2016-04-10
Rated 5 out of 5 by from Great quality and easy intall I recently purchased a 2016 GT and like most other owners, the first thing to upgrade is the exhaust. Most of the previous Mustangs I have owned were from the mid 80’s through mid 90’s. During that time frame you could definitely tell sound differences between exhaust systems. In looking for a new system for the 16’ GT I was looking for some of the same sound. Unfortunately the engine and set up is completely different which makes the exhaust note very different. When it comes to exhaust sound it just depends on what you’re looking for. I literally spent week’s listening to every video online and in my own opinion most of the systems sound the same for the 15-16 GT’s. However the main difference I noted was “extreme or race” applications were a bit much for my taste. While I thought they sounded great they were just a bit much for what I was looking for. I was looking for an exhaust that had the aftermarket sound, decent interior noise, and provided a solid aftermarket sound when you hit the gas. This system does just that. Don’t be nervous about the low cost potentially meaning the quality is bad. I ordered the stainless steel version and I saw zero issues with the quality. Installation seemed very easy with no cutting requirements. As a reference I have owned various vehicles from 60’s muscle cars, street rods, Dodge Vipers etc I would stand behind my recommendation of this system.
Date published: 2016-02-19
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Product Questions

What's decibel is this exhaust? WOT (wide open throttle) and idle?  In your opinion Is this one of the loudest systems for the 2015 GT?

Asked by: GUARD
We don't have decibel readings. This is MBRP's street version, it is not meant to be a load system. MBRP's race version would be louder. http://www.cjponyparts.com/mustang-parts/p/CBP34/
Answered by: Rick CJs
Date published: 2016-08-05

Hi, do you ship to mexico?

Asked by: Rluna14
Yes we do.
Answered by: Rick CJs
Date published: 2016-08-06

How much would it be to send a cat back exhaust to 2671. , Nsw , Australia 

Asked by: Ando82
To get a shipping quote and total price, add the item(s) to your shopping cart and then proceed to checkout. In checkout, fill out your address info and scroll down to see shipping options and costs to your area including any import taxes and duties.
Answered by: rk cjpp
Date published: 2016-10-02

Are you able to ship an MBRP Cat back Street in stainless steel for the Mustang 2016 5.0 GT to the UK? If so can you give a total price? Many thanks 

Asked by: CliveGosling
To get a shipping quote and total price, add the item(s) to your shopping cart and then proceed to checkout. In checkout, fill out your address info and scroll down to see shipping options and costs to your area including any import taxes and duties.
Answered by: rk cjpp
Date published: 2016-07-18

Read that the refector above the tip melting but also read that the tips are double walled. If they are it seems unlikely for this to happen. Any info on this?

Asked by: Jugnuts
Mine did just recently. I have a 15 GT with the MBRP Street Series Cat Backs.
Answered by: nick5oh
Date published: 2016-04-29

Do you you know what the max noise level would be for the street series exhaust is please?. In New Zealand the max we can get away with is 90dBA, and from what I can see California is the strictest state in the US, and its max level is 95 if I'm not wrong

Asked by: gribby
The stock S550 GT exhaust clocks in just over 90dB in US spec. I'm not sure if it's exactly the same in NZ or not. This exhaust is a fair bit louder than stock, so you would very likely be over 90dB (if not the 95dB for CA).
Answered by: Snacks
Date published: 2016-01-28

Same sound from the Stainless Steel vs the Aluminized? I am looking for a no drone application.

Asked by: bullet6236
The sound will be NO different from the Stainless Steel vs the Aluminized version.
Answered by: CJPP Dave
Date published: 2016-03-06

Whats your phone number 

Asked by: White boy
Toll Free: 1-800-888-6473 Local: 717-657-9252
Answered by: CJPP Dave
Date published: 2015-10-15
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Product Video

MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback GT 2015-2017 Video Transcript
By Bill Tumas: We've been a fan of MBRP's exhaust systems ever since we installed one in our previous 2013 Got-To-Have-It Race project car. We recently installed their 2015 system, and the Race sounds killer on that car as well. The Race is on the loud side though, it's not for everybody. If you're looking for something a little more mild but still want that muscle car tone that MBRP provides, they offer the Street System and today I'm going to show you how to install that. Like the Race System the Street System is also available in aluminized or stainless steel and is an excellent value for a Cat-Back system for your 2015 Mustang.

It starts by replacing the resonator with a true H-pipe to give you that muscle car sound and goes through true 3 inch mandrel-bent pipes, through a set of their street mufflers and even a set of 4 and 1/2 inch polished tips.

We're going to start with some sound clips of the factory exhaust. First a few in our studio and then we'll take it for a ride.

For this installation your going to need a lift or a jack and jack stands, 3/8" ratchet, 13mm shallow socket, 15mm socket, 8mm Alan key, 6" extension and a flat blade screwdriver.

Like we've shown you many times in the past, removing the stock exhaust system is actually quite easy but we do suggest a second set of hands to make it easier.

The first thing you want to do, remove the two bolts for the two rear brackets. Don't worry about removing the bolts. There's actually a little hook so they're not going to fall off.

Now we move forward and loosen the clamps that hold the resonator to the front parts.

And we want to move this little tab up. Little stud that will stop it and then you can slide the clamp down.

Now you can pop these little hangers off here.

Okay, now the weights going to go forward and you sort of shimmy the system forward off the rear clamps.

We're going to remove these clamps off the factory pipes. Move them over to our MBRP.

First we're going to install the factory clamps back on the factory pipes. I'll grab our new H-pipe.

Install the H-pipe with these flat sections with the circles facing downward.

Now we'll just snug them up a little bit.

To install the MBRP, we also have to remove the rear hanger bracket to the tail pipe. There's one bolt here and one up on the side.

To prepare the new pipe for installation we're going to install all the factory hangers as well as the new clamp.

Alright, now we're going to tighten the front clamp to the H-pipe.

Now you can put the tip up into place and you can kind of put it wherever you want, as far as you want. Usually try to line it up right with the edge here. And repeat the process on the other side.

Has a very aggressive tone as well. Very similar to the Race, just a little bit less volume overall, but still that nice deep tone and idle and an aggressive sound when you hit it.

Considering how loud it is outside the car, it's actually surprisingly quiet inside the car. There you go, there's 60 miles per hour, 2 grand. I would say a hint of a drone at most. This wouldn't bother me at all for daily driving, for long highway commutes, whatsoever. You can really barely hear it. Even with acceleration, you can hear the aftermarket exhaust, it's not overbearing at all. Definitely considering how loud it is outside the car.

Has a nice deep tone at idle, too. Just sitting at a traffic light you can definitely hear it's an aftermarket exhaust but it's got a nice tone to it. I mean it's a really muscle car sound, a really deep muscle car tone.

If you like the sound of the Race system and want something a little more mellow, the street is going to be the perfect choice. You still get that nice deep tone from the H-pipe. The Street muffler just keeps the volume a little bit lower. Inside the cabin it's nice and quiet but still has a nice aggressive sound outside. As far as bang for the buck, MBRP's going to be tough to beat.

For more installation videos for your 2015 Mustang, you should subscribe to our YouTube Channel and check out CJ Pony Parts for the best selection of Mustang Exhaust.