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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.

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 Catback, 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


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 ...

Read More
Helpful (8)

Nice Pipes!

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

Helpful (14)

Read All 21 Reviews
Overall Rating 4.6 out of 5 stars


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 View Full Transcript

Customer Photos (4) View All Photos

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5 Questions / 9 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!

    Best Answer


    Good Answer (4)

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!

    Best Answer


    Good Answer (3)

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.

    Best Answer


    Good Answer (1)

Show 1 more answer Question Resolved

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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

  • 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 (14) (4)

  • 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 (3) (0)

  • 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)

  • 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.

    Top 1000 Contributor


    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) (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 (0) (0)

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