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Magnaflow Off-Road Tru-X X-Pipe (11-14 GT)

AmericanMuscle no longer carries the Magnaflow Off-Road Tru-X X-Pipe (11-14 GT). Please check out 2010-2014 Mustang Stock Length X-Pipes for an updated selection.
21 Reviews
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  • Item #48042
  • MPN# 16400

  • Market Price $658.99
  • You Save 6% ($41.00)
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AmericanMuscle no longer carries the Magnaflow Off-Road Tru-X X-Pipe (11-14 GT). Please check out 2010-2014 Mustang Stock Length X-Pipes for an updated selection.

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Product Videos Customer Photos
  • More Power.
  • Improves Exhaust Flow and Sound.
  • Stainless Steel Construction.
  • 3" Mandrel-Bent Tubing.
  • For Off-Road Use.
  • Fits 2011-2014 GT Mustangs.
See our 2011 GT Project Car Now

Improves Exhaust Flow. Gain power and torque on your 2011-2014 Mustang GT by replacing your restrictive factory H-Pipe with a Magnaflow Off-Road Tru-X X-Pipe. By balancing out your exhaust flow and removing the factory cats, your track-ready Mustang GT will gain power, torque, and even sound better. In fact, our 2011 Project car has this same system with the Magnaflow Competition Cat-Back, and was dyno tested with a peak gain of 19 RWHP and 18 ft-lb of torque.

Premium Quality. Magnaflow's Tru-X X-Pipe is made from free-flowing mandrel bent 3" stainless steel tubing for improved exhaust flow and a long life.

Complete Kit. All Magnaflow X-Pipes come with all hardware necessary for installation and carry a lifetime manufacturer's warranty.

Application. This Magnaflow Off-Road Tru-X X-Pipe is designed to be a direct bolt-on for the 2011-2014 5.0L V8 GT Mustangs with either an aftermarket short tube headers or the stock manifolds installed. Intended for off-road track use only.

Note: Coupon codes cannot be applied to this product.

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) X-Pipe
  • (2) Down Pipes
  • (2) Clamps
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard length "X" Type Headers Required: Shorty or Stock Manifolds
Piping Material: Stainless Steel Piping Size: 3"
Catalytic Converter: "No" - For off-road use only Fitment: 2011-2014 GT Mustangs
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • GT - 11, 12, 13, 14

Most Helpful Reviews

off road x-pipe

Great product....u can do it yourself with minimal tools an the the xpipe truly brings ur stang to life

Helpful (4)

Nice Pipes!

It's so nice when you get rid of the cats... makes everything sound better.

Helpful (15)

Overall Rating 4.6 out of 5 stars
Read All 21 Reviews

Review & Install Video

Hey, I'm Justin with, and this is our power pack Bolt-On Build-Up for all 2011 and newer Mustang GTs. Power, it's a simple thing really, what puts a smile on our face every time we bury the throttle. It's why we a Mustang instead of a Prius. Never before has there been a factory GT that has made more power than these newer Coyote Mustangs. Now even though this amazing 5.0 motor produces over 400 horsepower at the crank, eventually we get used to it, and it's at that point that we begin our search for more. That's what this power pack is all about. We're going to be installing some of the bolt-on basics and then using our Dyno jet here, to see what kind of improvements we made. So, enough with the talking already, let's get a quick baseline number down, and then get to work installing our parts. Hey Mike, I know the guys just finished up installing the parts on our 11 here. Looks like we got some great parts that should help our Coyote motor breathe a little easier Let's work from front to back. Starting with that Airaid, now what makes those a little bit better than the stock airbox? MIKE: Well, it's got a high-flow reusable air filter that's going to allow more air to enter the engine. The closed Airbox blocks all the heat from the engine from getting into the motor, and the increased size of the intake tube again, is going to allow more air to get into the motor, allow it to breathe better, make more power. JUSTIN: Awesome man, speaking of allowing more air into the motor, we also went with 85mm BBK throttle body, what are some of the benefits of going with that? MIKE: Well, while it doesn't pack the biggest punch in horsepower, it's a great complementary mod, and thanks to the pre-installed electronics from BBK, makes it a very simple install. JUSTIN: Now let's move onto the business side of things, I know we got a couple of parts from Magnaflow for the exhaust starting with their TrueX X-pipe. Explain, if you will, the benefits of using an off-road X- or H-pipe, and what can we expect? MIKE: Well, you're going to eliminate the catalytic converters, which is going to increase airflow, and we've got the X-Pipe, which is going to do a real good job of scavenging the exhaust, and again, making more horsepower. Out the back, we've installed the Magnaflow street axle-back system which is an aggressive sound, but it's not too loud, and we're not going to have any of the drum. JUSTIN: Now, I know each one of these parts individually does not require a tune, but you really stress the importance of kind of bringing them all together with one of your custom Bama tunes. Why is that? MIKE: Well, with the Bama tune, we take all the modifications into effect when we build the tune for the car. While the Airaid doesn't require a tune, because of the modular Venturi insert, we've removed the insert to increase the airflow, and increase the horsepower, but it also wraps everything else together. The drive-by-wire, calibration for the pedal, the transmission calibration, a bunch of other things that we do, kind of wrap the whole package together. JUSTIN: Well, there's only one more thing to do, I guess, right, and see what kind of power it makes? MIKE: Absolutely. JUSTIN: Let's do it. So our baseline run with our automatic 2011 GT gave us 337 horsepower, and 325 ft/lbs of torque. With our power pack installed, we put down 381 horsepower, and 359 ft/lbs of torque, making for a peak horsepower gain of 44 over our baseline numbers, and gains of 44 horsepower, and 51 ft/lbs of torque throughout the curve. Now that we know the power's really been increased, I'm going to get to work on strapping the car, so I can take it out on the streets, and have a little fun. Alright, well, what better way to start off the powerpack with the 2011 GT with a nice big, smoky burnout, huh? Well, I tell you what, man, the exhaust sounds great already, definitely more grunt than the stock exhaust. We've got a straightaway coming up here, so let's get around this bend, hammer on it, and see if this power pack's doing it's job, shall we? So, a solid chirp in 3rd gear, the car winds out way harder than it did before. Those shift points have definitely been raised a few hundred rpm, and the car pulls like a bat out of hell, man, it's awesome! Like I said about the exhaust, Magnaflow did a great job at creating a street-series, which is a nice balance between that classic muscle sound, but also, you know, keeps it tame. You can still cart your Mom around town, and she's not going to be complaining the time, my car is too loud. So, I love it man, sounds great. Now of course we've got the Cold-Air installed along with the throttle body, parts that, you're probably not going to notice are installed when they're working in conjunction with everything else, but we've seen the results on the dyno, we know they're doing their job, and that's just the whole point of the powerpack, man. We got a bunch of parts working together for us, to one common goal, of making this thing really rip, and boy does it, as you just saw. So, that's it for our powerpack for the 2011 GT. I'm going to go incinerate some more tires, but in the meantime, be sure to check out some of our other 2011 and up Bolt-On Build-Ups, where we make the car look a little bit better, and make it handle like it's on rails.

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5 Questions / 13 Answers

Ask a Question

application question. Does this x-pipe work with stock pipes or do you have to combine it with the magnaflow pipes that come with the cat-back kit? I have the Competition series axel backs from magnaflow and I want to add these, will it work with my stock pipes?


  • Absolutely, this X-pipe is a direct replacement for your factory mid-pipe; it will bolt-on to the stock pipes and will be a nice complement to your Magnaflow Axle-back!


    Good Answer (4) (0)

Show 2 more answers Question Resolved

Tune Required? Can I run this x-pipe as plug-n-play or will I throw a CEL without having a tune?


  • Because it's an O/R mid-pipe (no catalytic converters), it will throw a check engine light. You can bolt this mid-pipe right into your exhaust and run it without problems; however, it's highly recommended to get an new tune to correct the CEL and to obtain maximum performance out of your new mod!


    Good Answer (4) (0)

Show 3 more answers Question Resolved

O2 sensor ? During the removal and installation of the X pipe, wouldn't it be easier to remove the O2 sensors after removing the old exhaust (cats and h pipe) then install them into the new X pipe before installing the x pipe into the car? Or is there a special reason for removing them first and installing them last? (taking into account the O2 sensors eletrical plug is unplugged first)


  • It makes it less likely to break or damage the O2 sensor if it is completely out during removal and installation of the x-pipe.


    Good Answer (1) (0)

Show 1 more answer Answer This Question I need this answered (3) (0)

can i add the flowmaster outlaws can I combine this magnaflow off road x pipe with the flowmaster outlaw axle back?


  • I'm running this X-Pipe with 40 Series Flowmasters so I can't see why it wouldn't work. It's two completely different sections of the exhaust.


    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

Can i use LT headers with this x pipe? if so, which headers?


  • No you cannot need to buy x pipe for long tube headers.This pipe is for stock exhaust.


    Good Answer (0) (0)

Show 1 more answer Answer This Question I need this answered (0) (0)

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Customer Reviews (21) Write a Review

Overall Rating 4.6

out of 5 stars

Installation Time:Afternoon

Installation Cost:0-$100

  • Loudness / Volume 4.789474 4.8
  • Exhaust Note 4.736842 4.7
  • Fit & Finish 4.421052 4.4
  • Bang For Your Buck 4.578948 4.6

  • 5/5

    Installation Time: Afternoon

    December 26, 2011

    off road x-pipe

    Great product....u can do it yourself with minimal tools an the the xpipe truly brings ur stang to life


    fort hood, tx

    Helpful (4) (0)

  • 4/5

    Installation Time: Less than 1 Hour

    December 21, 2011


    i installed this along with my borla mufflers... the mufflers alone sounded ok but i wanted more. i was contemplating between high flow cats or no cats but i bit the bullet and went with the offroad. it is now a true beast! i have a clip on youtube, just search bryaneffinturner. it is very loud when you downshift and obviously wot. i was shocked because there is not alot of droan while going 60-80 mph. i was worried about that but you will be suprised how quiet it is cruising. however, when you get on it, it is loud! go for it


    houston, texas

    Helpful (8) (0)

  • 5/5

    November 28, 2010

    Nice Pipes!

    It's so nice when you get rid of the cats... makes everything sound better.


    Helpful (15) (4)

  • 5/5

    Installation Time: Afternoon

    December 07, 2011

    Great product!!

    The Magnaflow O/R Tru-X X-pipe is the best mod I have installed on my 5.0 so far, and is definitely worth the money! I would highly recommend this X-pipe to anyone who has already installed a cat-back exhaust. It really brought out the muscular exhaust note that I was looking for!


    LaFayette, GA

    Helpful (3) (0)

  • 5/5

    Installation Time: Afternoon

    July 10, 2014

    Great Product

    Received my Magnaflow Off-Road X-Pipe within 1 business day and started the install that night. Everything was included and the welds looked great. My 2012 GT only has 12,000 miles, but those bolts that connect to the factory H pipe were a pain to get off (took about an hour and a lot of PB Blaster). Once removed the new X-Pipe slid right into place. Bolted it back up and turned it on to hear that new sweet sweet exhaust note. The Magnaflow X-Pipe was paired with my Flowmaster axle back, and it sounds amazing. I would highly recommend this product to anyone who wants to remove their cats and get some more power out of their coyote motor. You will throw a check engine light so a tune that clears that is a must if you don't want to see that light all the time. The only time the drone is bad is around 2,000rpms and you can only smell the exhaust when you're at a stop light and the wind is blowing from behind. Overall great product and great service from American Muscle!


    Bethlehem, PA, USA

    Helpful (1) (0)

  • 4/5

    Installation Time: Afternoon

    December 14, 2011

    amazing sound but a high volume

    amazing sound but a high volume, the installation was fast but not easy to adjust.


    Helpful (1) (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    June 07, 2014

    You will not regret this

    These O/R X-Pipes were installed at the shop because I have zero mechanical knowledge, therefore I can not comment on the installation. As far as the sound and enjoyability of this mod I can comment. This is a must have mod if you're tired of the stock or Axle Back sound of your beast, At WOT it's just awesome, the looks and comments you get are great. The drone is decent, certainly bearable. The idle is great, sometimes at a stop light I roll my windows down turn the radio off and just listen to the rumble. The only slight con I have is the odor of the exhaust fumes because there are no Cats, it runs very rich. I paired this with Roush A/B and Steeda CAI I love the sound and power it puts out. Drive safe.....



    Helpful (0) (1)

  • 5/5

    Installation Time: Afternoon

    July 20, 2012

    The X-Pipe is Loud

    I've had this X-Pipe on for a almost 2 weeks now. I have this with the Flow Master American Thunder Axle back. This exhaust set up is loud and sounds awesome. I have had the SLP Axle back on a 2008 GT and that has nothing on this set up. So if you want loud this X-Pipe will give it to you. The only complaint I have is drone. On the interstate at 2200 RPM's the drone is terrible, I get a headache after a 25 minute commute. I'm changing to a steeper gear in 3 days (I'm going from a 3:31 to a 4:10). If this change doesn't help any I'm going to look at a new Axle Back, maybe even trying the stock Mufflers just to lessen the drone. But I will be keeping the o/r X-Pipe it's awesome. I will just deal with the drone before I take it off.


    Rock Hill, SC, USA

    Helpful (1) (3)

  • 1/5

    May 24, 2011

    Low quality craftsmanship!!

    Part was not cleaned after manufacturing. Welds are sloppy and not polished. Still a small piece of stick from the welder on the stuck in one of the welds. Just low quality work done by magnaflow.


    Helpful (8) (17)

  • 4/5

    Installation Time: Afternoon

    August 01, 2014

    BAMF Exhaust

    Okay, so this exhaust is not for the feint of heart, and if you have neighbors they might be angry....oh well. I have this system paired with a set of Flowmaster outlaws and let me tell you there is nothing quiet about this exhaust, which for me is great. Pros: excellent product from magnaflow, all welds are good. excellent sound easy enough of an installation Cons: Magnaflow does not provide new nuts (which you will need) the stock ones do not work and will strip the threads You will not be able to use voice commands very easily if you have sync in your Stang This takes more than 30mins unless installed by a professional shop. (And I'm quite experienced myself, multiple engine rebuilds and exhaust swaps on various vehicles and this is my 3rd Stang) That being said, it is still a great product and I would take it over the Pypes system any day because Magnaflow includes exhaust clamps which are vital unless you want a nasty exhaust leak down the road.


    Fort Bragg, NC, USA

    Helpful (0) (1)

  • 4/5

    Installation Time: Afternoon

    April 25, 2014

    Magnaflow O2 bungs

    The O2 bungs were only tacked on from the factory. I expected more from Magnaflow and I paid the extra amount for their product. On top of that I had to pay the installers the extra cost of finishing the welding. Otherwise, a great product! I still recommend them.


    Birmingham, AL, USA

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    March 24, 2014

    Great Product!

    I first ordered Pypes off road x pipe and took it off after only about a week due to leaks and how far it hung below the frame rails and would drag the ground on my lowered car. I then spent the money for the magnaflow and as the saying goes you get what you pay for! Perfect fit and no leaks.


    Oklahoma, USA

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    February 22, 2014

    Really awoke my coyote.!!

    This magnaflow puppy really woke up my coyote! I have the roushe axle back mufflers on but didn't really like the raspyness! Low rpm was totally a head turner but once you pedal to the medal sounded like glassspaks.! Went with the outlaws whoooooah! Now just waitin on my boss package to really get the performance outta the magnaflow tru o/r xxpipe! Recommend this product!


    Corpus Christi, TX, USA

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    June 20, 2013

    2014 Mustang GT/Flowmasters/No Resonators

    These gave my GT that metallic bark I believe ALL DOHC V8's should have!! Not TOO loud as long as you stay out of the GO pedal, but it's going to be difficult because this piece adds some nice top-end to the car! The high RPM scream is addictive. Installaton was straight forward and with a lift should take about 1.5hrs. I did it with a jack and jackstands in the dirt. I couldn't stand to wait for the exhaust shop to get to it. Make sure you have the proper tools!!


    Branford, FL, USA

    Helpful (0) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    June 19, 2013

    Easy way to amplify your exhaust note.

    Super easy to install. I can actually hear my exhaust now!


    Helpful (0) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    April 07, 2013

    great sound

    Great quality Removed Hartthrob H pipe because of constant exhaust leaks! The X pipe sounds much better and no leaks!


    Kyle tx

    Helpful (0) (0)

  • 4/5

    Installation Time: Afternoon

    December 19, 2012

    great product be beware

    Its a great product but mine cam in cracked around the welds. So please make sure to check yours before installing mine was only a hair line crack but kept throwing a wrench becuase of it. Got it fixed and its a great qaulity and sounding x pipe.


    Houston, TX, USA

    Helpful (0) (0)

  • 5/5

    Installation Time: Afternoon

    December 15, 2012

    The sound clip does this x pipe no justice.

    This pipe fits well, pretty easy to install if you have a lift. I did the entire exhaust from the manifolds back. I also got the Roush axle back. I dont know how it would sound with the stock mufflers, but combined with the Roush axle back, it sounds so nasty! Sounds like there is no exhaust on the car at all. If you combine this with an aggressive axle back, be prepared to get looks everywhere you go. And if you have to leave for work at 5am, your neighbors will hate you.!



    Helpful (0) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    July 27, 2012

    Well worth it!

    I installed the Magna flo exhaust myself. Simple bolt on horsepower. I could feel the gain instantly. Well worth the money and it sounds so mean. I couldn't be happier.


    New Orleans, La.

    Helpful (0) (0)

  • 5/5

    Installation Time: Less than 1 Hour

    July 27, 2012

    Amazing x pipe

    I purchased this x pipe and i could not be more pleased. It sounds amazing and the fit is great. Just be sure to tighten town all the clamps as tight as possible i had problems with a small leak. Idk if this is a common problem? I would recomend this x pipe to anyone looking for a off road x. Its is worth the price. Thank you americanmuscle


    Fortworth Texas

    Helpful (0) (0)

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