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Borla XR-1 Long Tube Headers (11-14 GT, BOSS)

Market Price $1,103.99 You Save 11% ($118.00)
Our Price


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  • Item 29022
  • MPN# 17263

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Features & Details

  • Increases Horsepower and Torque
  • Long Tube Header Design
  • Free Flowing 1-3/4" Mandrel-Bent Tubing
  • Stainless Steel Construction
  • Natural Finish
  • For Off-Road, Track Use
  • Fits 2011-2014 5.0L GT and BOSS Mustangs
More Horsepower And Torque. Improve the performance of your 5.0L coyote Mustang throughout the entire RPM band with a set of Borla Long Tube Headers. These Borla Headers will greatly improve your 5.0 Mustangs exhaust flow over the restrictive factory manifolds to increase your Pony's horsepower and torque. Significant increases in rear wheel horsepower have been seen when installed with a matching Borla ATAK Cat-Back System.

Quality Construction. Borla Long Tube Exhaust headers are CNC mandrel bent from 1-3/4" 16 gauge aircraft-quality T-304 stainless steel tubing for unrestricted airflow. They feature one piece 3/8" header flanges for added strength, leak-free performance and an OEM style fit.

Recommended Upgrade. To realize the full power potential that these Long Tube Headers have to offer, AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Required Upgrade. The Borla XR-1 Long Tube Mustang Headers will require the use of a Borla ATAK, Borla 'S' Type, or Borla Touring system with included X-Pipe for proper installation (See drop down option above).

Application. These Borla XR-1 Long Tube Headers are specifically designed to fit the 2011 to 2014 GT and BOSS 302 Mustangs equipped with the 4 valve 5.0L coyote engine.

Technical notes. Not legal for use on pollution controlled motor vehicles; intended for off road use only.

Fitment: 2011 2012 2013 2014 Details

What's in the Box
  • (1) Driver side header
  • (1) Passenger side header
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Finish: Natural
Type Mid Pipe Required: ATAK Cat-Back with X-Pipe Fitment: 2011-2014 5.0 GT Mustangs
Will it fit my Mustang?
  • Boss 302 - 12, 13
  • GT - 11, 12, 13, 14

People Who Bought This Item Also Bought

Most Helpful Reviews

Borla Long tubes!!! Amazing!!!

Very costy but it is worth it!!!!!! Changed from shorties to long tubes and I won't go back. This long tubes werent as hard to install pretty simple all the way if you also have the cat back exhaust. It ...

Read More
Helpful (2)

Xr-1 LT Headers

Ordered these headers one thursday morning and had them delivered the following thursday. Delivery took longer than expected but as always, im very satisfied with my purchase. I am no mechanic and installing ...

Read More
Helpful (1)

Overall Rating 5 out of 5 stars
Read All 7 Reviews

Customer Photos (3) Submit Your Photo

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7 Questions / 9 Answers

Ask a Question

Will these headers bolt up to the borla atak gt500 cat back


Helpful (0)
  • Hello! The Borla XR-1 Long Tube Headers will work with the Borla Atak system as long as it uses the included X-Pipe.


Borla Exhaust I already have the Borla ATAK, axel back exhaust. I want to upgrade to the Borla long tube headers. What components do I need to complete the Borla exhaust system?


Helpful (0)
  • This, also best thing to do is pair it up with a borla h or x pipe. Depending on what sound you go for depends on what you get. YouTube has alit of good sound combinations


O2 senor extension when installing these with the Borla x-pipe and removing the cats, will you need an O2 Extension plug?


Helpful (0)
  • you will not with the full Borla system...


Do I need to buy the gaskets seperately from this purchase?


Helpful (0)
  • The Borla XR-1 Long Tube Headers (11-14 GT, BOSS) will not come with gaskets however these headers will be able to retain the stock header gaskets or stock replacement header gaskets.


Borla XR-1 paired with Borla S-Type volume? Would this setup be to loud for daily driving or would it be similar to just having the catback system at cruising RPM's?


Helpful (0)
  • If you live in a SMOG restrictive area this will not allow to pass emissions. These headers will make a more considerable differance when compared to your current catback setup simply because you will be removing your cats. If you're concerned about noise you should be fine with low to mid rpm driving range but once you hit the higher rpms you'll want to keep an eye open for flashing lights. Furthermore, it maybe in your best interest to get a non-muffler delete system. The muffler deletes will give you a Godzilla like decible range and will definitely gather unwanted attention. But ultimately the choice is yours.


Show 1 more answer

If you get the Borla Xr-1 Long Tube Headers installed with the Borla ATAK Catbacl system, will a tune be required?


Helpful (0)
  • A tune is required in this instance because the XR-1 headers and Borla cat backs delete the catalytic converters. You will get a check engine light and will not run with maximum efficiency without a tune.


Show 2 more answers

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Customer Reviews (7) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Weekend

Installation Cost:$500-$1000

  • Performance Gain 5 5
  • Fit 4.857143 4.9

  • 5/5

    Installation Time: Full Day

    September 22, 2013

    Borla Long tubes!!! Amazing!!!

    Very costy but it is worth it!!!!!! Changed from shorties to long tubes and I won't go back. This long tubes werent as hard to install pretty simple all the way if you also have the cat back exhaust. It made my car much lighter and much louder and what can I say much faster!!!! Recommend this item to anyone with a stang:)


    Year: 2012 Submodel: GT Houston, TX, USA

    Helpful (2)

  • 5/5

    Installation Time: Full Day

    November 19, 2015

    Borla xr-1 longtubes

    Took about 8hrs total to install. I did mine by removing the k member. Gives you alot more room to work. Instruction well there might as well be none. If you've wrenched on cars before this should be no problem. Tuned on the dyno with hp tuners netted 414.4 whp and 395 foot pounds of torque. Only mods is the longtubes and full borla catback.


    Year: 2013 Submodel: GT Zanesville ohio

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    June 01, 2015


    I had my mechanic install the headers for me as well as the catback borla atak exhaust system. It took a full day to install everything. So I had a full day full of suspense of hearing and driving my mustang GT 2014. But all I needed was to start the car and hear my Stang ROAR and I loved it. Driving back home I loved my exhaust even more. Getting looks and people cheering my car on. Thanks American Muscle, this is a great product.


    Year: 2014 Submodel: GT Miami, FL

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    July 18, 2014

    Great quality and great performance

    Although these headers are more expensive than most brands, the build quality and fit more than make up for it. Unless you have the patience and the tools (i.e. lift), I recommend that you have these installed by a pro. They had to drop the k-member to do the install properly. I installed these with the Borla x-pipe (cat delete) and the Borla catback system with s-type mufflers. The sound at idle is fairly loud, but aggressive. The sound at full throttle will make the ground shake. The headers, x-pipe and catback system with tune definately added power. I have not had a chance to dyno the car yet, but will shortly in the future. Great product!


    Year: 2011 Submodel: GT Cincinnati, OH, USA

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    April 25, 2014

    Loud, Proud, and WOWED!

    Oh boy. These babies are LOUD. I already had a Borla S-Type catback but these bad boys just scream. Cruising on the highway they sound about the same but a little deeper... but as soon as you touch the throttle is sounds the gates of h*** are opening. Needless to say, I'm a fan. I don't currently have cats anymore, my county doesn't require emissions as of now so if you go that route, it will smell a little different without the cats and backfire here and there... which I get a little chuckle out of.. and did I mention it's loud? Now, on to installation. Hubbah! These took me and a buddy about 2 8hour days in my garage. I used jack stands and a few man powered wrenches and sockets. Getting to some of the bolts on the stock headers were a pain in the butt. The "instructions" that Borla included were a joke to say the least (it basically tells you to go to a shop), and they sent me the wrong bolts for the new headers... the threads weren't the same to bolt to the engine. I had to remove the battery, the starter, cross member, my airbox, the steering shaft, both motor mounts, and jack the engine up. The driver side went in without any issues, the passenger side was a pain in the but because of the air conditioning unit. But nothing that someone with a bit of know-how can't tackle. I will say that bolting these on vs taking the stock ones off are WAY easier. Do I recommend? Yes. Just make sure you leave yourself plenty of time and get a tune.


    Year: 2011 Submodel: GT Brigham City, UT

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    October 23, 2013

    Xr-1 LT Headers

    Ordered these headers one thursday morning and had them delivered the following thursday. Delivery took longer than expected but as always, im very satisfied with my purchase. I am no mechanic and installing these was a pain! Overall, the fit was great and as always the cars performance was greatly increased. waiting to put her on the dyno next month. Thanks A.M


    Year: 2013 Submodel: GT Pilot point, tx, USA

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    April 05, 2016

    All I can say is, WOW!!

    These headers along with the 3" cat back exhaust system from Borla make one heck of an upgrade. I took these to the shop to have them installed due to not having access to a lift. It is a very intensive install and unless you are very savvy and have all the right gear, this should be done by professionals. That being said, I picked my baby up and as soon as I started her up, I knew that I had my monies worth. The sound is just great, nothing compares to Borla's quality and they have proven once again that they know how to make a Mustang sound mean. Also, these are a bit pricey, but the guys at the shop said that due to the excellent fitment, I was saved about 200 dollars in labor. The price is well worth it in my opinion.


    Year: 2014 Submodel: GT

    Helpful (0)

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