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

MBRP: S7274409
MSRP: $864.70
CJ's Low Price:
1477353600 61324
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MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback EcoBoost 2015-2017
MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback EcoBoost 2015-2017 Play MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback EcoBoost 2015-2017 Video 1

Product Description

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

Have you just purchased a new Fastback EcoBoost S550 Mustang? If so, we are sure you noticed upon starting the engine, just how quiet your new pony car actually is. Enter MBRP, with a solution that will not break the bank and will provide you with the right sound and performance you demand. MBRP introduces their new tame, yet aggressive, not wake your neighbors up in the morning kind of option with the Stainless Steel XP Series 3" Street Cat-Back Exhaust System with dual 4-1/2” polished T409 exhaust tips for your Fastback EcoBoost Mustang!

Features and Benefits:
- Tame, Yet Pronounced Street Version
- Polished 4-1/2” Stainless Steel Tips
- Large 3” T409 Stainless Steel Piping for Maximum Flow
- Utilizes Included Y-Pipe for an Improved Exhaust Note
- Includes All Necessary Clamps and Hardware
- 100% Bolt-On Installation

*This Exhaust System from MBRP will Not work on Convertible Mustangs

An MBRP performance exhaust system is the starting point to getting the most from your cold air intakes, tuners and other bolt-ons. Combined with an aftermarket downpipe, this system will not only sound amazing, but also show great power gains due to drastically improved flow capacity. Furthering those power gains is a high-flow Y-Pipe and large 3” mandrel-bent T409 Stainless Steel piping all capped off with polished 4-1/2” tips.

Installation is a walk in the park with a lift and not too bad with a jack and jack stands, take into consideration it’s a 100% bolt-on installation with basic hand tools. This exhaust system spent numerous hours on the dyno and hundreds of miles on the street and track to guarantee the best performance imaginable. MBRP's cat-back system was engineered to maximize exhaust flow and in turn minimizes exhaust temperatures.

The new 2.3L EcoBoost engine has just made its introduction into the Mustang, but already has been proven to make huge amounts of power, but the exhaust note just isn’t there to back up the potential that rest beneath your hood. This cat-back system from MBRP will take your EcoBoost 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 EcoBoost Mustang from CJ Pony Parts today!

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Installation Instructions

Mustang Installation

Mustang Applications

This product will fit the following Ford Mustang years:

Product Reviews

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MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback EcoBoost 2015-2017 is rated 3.0 out of 5 by 2.
Rated 5 out of 5 by from Great throaty tone This is a real nice aftermarket exhaust that was affordable too. Well made and packaged for safe shipment. Fairly easy to install. I had the Mustang on jack stands. Parts went together pretty easy and fitment was exact. Had a little trouble with the left pipe hanging too low but finally got her right. Absolutely love the exhaust note. Way better than stock. Deep note but is not noticeable on open highway. Looks really good too with the large tips.
Date published: 2015-09-17
Rated 1 out of 5 by from rust after4000 kms rust is after 4000 kms,i have contaced mbrp,that will not changed me even with the lifetime warranty
Date published: 2016-07-22
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Product Questions


Asked by: 770022
This system fits Fastbacks ONLY.
Answered by: CJPP Dave
Date published: 2016-09-21

What's the warranty on this product? The MBRP website claims the stainless steel version carries lifetime warranty. Does that apply those sold by CJ?

Asked by: nenetl
Yes, the manufacture's warranty takes over after our 60 day return policy. Any warranty claims would be through MBRP, not CJs.
Answered by: Rick CJs
Date published: 2016-08-16

How does this compare to magnaflow street series regarding tone and volume sound? Also the pipe diameter, pipe material is something to consider? I'm trying to find find the deepest and loudest one in street series, I can't  see the difference in the vids

Asked by: Big Paulll
I would go with the MBRP.
Answered by: rk cjpp
Date published: 2016-03-31

in terms of tone and volume how does this compare to the Magnaflow Street Series

Asked by: Carbonfiber_kid
We should have videos for both systems, please check out our YouTube channel so that you can compare.
Answered by: CJPP Dave
Date published: 2016-02-12

Is this exhaust quiet and how much louder is the competition version of the exhaust. I just want an exhaust that won't be obnoxiously loud but loud enough none the less. 

Asked by: adamclockwork
It's definitely not quiet, but it is far more subdued when compared to the Race Version. We have videos for both systems to give you a great idea as to what they both sound like. It seems as though the Street System would be the right fit for you.
Answered by: CJPP Dave
Date published: 2015-11-13

Hello, I live in France (Corsica).Can I order the article: MagnaFlow Stainless Steel 2-1/2" Street Series Cat-Back Exhaust Kit for all 2015-2016 EcoBoost Mustangs.How much are the shipping costs Thanks

Asked by: Andre2b
To get a shipping quote, add it to your shopping cart and proceed to checkout. In checkout, fill out your address info and scroll down to see shipping options and costs to your area.
Answered by: CJPP Dave
Date published: 2015-11-09

what about droning for this exhaust.i want a sound snarl,but no into the car

Asked by: michel sendra
Listen to the clip at the end of the install video to get a good idea of the sound of this exhaust.
Answered by: CJ Pony Parts
Date published: 2015-09-14

When do you expect the street version of the MBRP EcoBoost exhaust to arrive at your shop? Also, will you do a sound clip as Bill did for the Focus ST? Besides the exhaust system what would be the next? I have a limitation of funds. Dennis

Asked by: DJHJr
That exhaust is available now. Look up CJ part # CBP39. We'll be looking into a video/sound clip sometime in the future.
Answered by: CJ Pony Parts
Date published: 2016-06-27
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Product Video

MBRP Cat-Back Exhaust System Street 3" Stainless Steel XP Series Fastback EcoBoost 2015-2017 Video Transcript
By Bill Tumas: We recently installed MBRP's Race Series Cat-Back on our 2015 EcoBoost Mustang. While the Race Series sounds great, the volume associated might be a bit much for some people's tastes, and that's where the MBRP Street System comes in. Cosmetically, it's virtually the same system, but it uses a slightly larger muffler to give you the same tone but keep the volume down.

There's two versions of the Street System available, just like the Race. You have the Black Series which is 3" aluminized piping with black paint and the XP Series which is 409 stainless steel. Today, we're going to install the 409 Stainless Steel XP Street System on our 2015 EcoBoost Fastback.

The MBRP Street Series Cat-Back will work with either a stock or aftermarket downpipe. It's made of 3" stainless steel piping that goes through a Y-pipe into a set of mandrel-bent tailpipes through the street series mufflers, ending in a set of 4-1/2" polished tips.

For this installation, we'll need a lift or a jack and jack stands, 3/8" ratchet, 13mm socket, 15mm socket, 5/16" Allen key, short extension, swivel, and exhaust hanger removal tool.

We already have an aftermarket system installed in our EcoBoost, but the removal of this will be the exact same as the factory system. We'll start by taking off these two bolts here, remove the two bolts up front for the clamp, slide it back to release the clamp, and slide it forward off the rear hangers.

Because of the weight and size, we suggest you get help getting this whole system off.

We'll start by installing the Y-pipe. You want to make sure this plate here is facing down. We're going to install it into the factory clamp and keep it centered. Just get it tight enough to hold it in place. I can move on to the tailpipe.

Start the tailpipe by putting the clamp up into place. We're going to be keeping the bolts on the inside. It makes it easier to tighten them later. We're going to put the factory hanger on the tailpipe and put it up into place.

Leaving everything loose, we can do the same thing now on the driver's side. Now I can push up everything into place and tighten it down. Now we'll tighten the fronts bolts and then reinstall the bolts for the rear hangers. Now we can move on and install the tips. Slide the tip over the tailpipe, then we'll adjust it for fitting it. Okay, repeat the process on the driver's side. Your installation's finished.

Now, let's see how the MBRP Street sounds. Idles very similar to what we expected, kind of like the Race. It has that deep tone, just a little quieter. Yeah, it sounds good so far. Let's take it for a ride.

My first impression of the MBRP Street is it's pretty much exactly what I thought it was going to sound like. It has the same kind of tone as the Race, but I'd say maybe 20%-25% less volume overall.

Here we are highway speeds at 2,000 rpm. You could really barely hear it, where when we had the Race System on the car you knew it was back there. It had that aftermarket tone. Here, you got a slight deep tone you can hear but barely noticeable.

A great choice if you want a little bit of a deeper tone out of your EcoBoost but you're not looking for something overly loud, the MBRP Street would definitely be one to look at. The MBRP Street would definitely be a system I would consider looking at. If you're looking for something that has a nice deep tone to it and not overly loud but definitely sounds better than factory, this is the system you'll want to check out.