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Borla 1-3/4 in. Long Tube Off-Road Headers (15-17 GT)

Market Price $1,440.99 You Save 11% ($154.00)
Our Price

$1,286.99

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  • Item 389218
  • MPN# 17290

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Features, Video & Details

  • Increases Horsepower and Torque
  • Long Tube Header Design
  • Free Flowing 1-3/4" Mandrel-Bent Tubing
  • Stainless Steel Construction
  • Natural Finish
  • Intended for Off-Road, Track Use Only
  • Fits Left Hand Drive Models Only
  • Fits 2015-2017 5.0L GT Mustangs

Review & Installation Video

Review & Install Video

More Horsepower And Torque. Improve the performance of your coyote powered S550 GT Mustang with a with a set of Borla Long Tube Off-Road Headers. These Borla Headers will greatly improve your 5.0L Mustangs exhaust flow over the restrictive stock manifolds for an increase in horsepower and torque throughout the entire RPM band. Significant increases in rear wheel horsepower have been seen when installed with a matching Borla 3" 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 strength and 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 Off-Road Headers have to offer, AmericanMuscle recommends a Bama custom tune with a Mustang Handheld Tuner to reprogram the vehicles computer (ECU) for proper operation.

Application. These Borla Off-Road Long Tube Headers are specifically designed to fit the 2015-2017 GT Mustangs equipped with the coyote 4 valve 5.0L V8 engine and a matching Borla 3" catback exhaust system part numbers 140629 or 140630. It is required to re-use the factory metal gaskets when installing these headers.

Application Note. Even though these Borla long tube off-road headers are designed to work with Borla's matching 3" catback exhaust systems, they can also be installed on OEM Factory, Borla 2.5”, or other aftermarket 2.5” exhaust systems with the addition of Borla's Intermediate Adaptor Pipes part# 60566 - sold separately.



Technical notes. Not legal for use on pollution controlled motor vehicles; intended for off road use only. These Headers are intended for left hand drive applications only.

Fitment: 2015 2016 2017 Details

What's in the Box
  • (1) Driver side header
  • (1) Passenger side header
  • (1) 30" oxygen sensor extension
  • (1) 37" oxygen sensor extension
  • (16) Bolts
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Type Mid Pipe Required: Stock Factory
Material: 304 Stainless Steel Finish: Natural
Catalytic Converter: "No" - For off-road use only Fitment: 2015-2017 GT Mustangs
Will it fit my Mustang?
  • GT - 15, 16, 17

These Headers are intended for left hand drive applications only.

Most Helpful Reviews

5/5
Borla Long tube

Nice fit,amazing sound for people like the sound of american muscle V8

Helpful (1)

5/5
Wow!!!!

The headers really brought my car to life. People around town say they can hear me driving around lol paired with the ford racing cat back exhaust, it gives your mustang that true muscle car sounds.

Helpful (1)

Overall Rating 5 out of 5 stars
Read All 8 Reviews

Customer Photos

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10 Questions / 6 Answers

Ask a Question

are these street legal in Texas?

Steve

  • Since CARB laws are not as restrictive in Texas, these would be legal however please check with your local ordinances for further information.

    KevinD92

Helpful (0)

Will Borla make a catted version of these headers?

PB9K

  • Hello, We are unsure if Borla will or will not make a catted version of this header, your best bet would be to contact them directly for that info.

    Cobra_Machine04

Helpful (0)

I'm planning on eventually getting the GT350 cylinder heads. Would these headers mount to it correctly (same bolt locations)?

FrankTank

  • The Borla Long Tube Off-Road Headers will work with the GT350 cylinder heads, item 390231/390232, however, since the ports are slightly larger, there will be some exhaust flow turbulence with any headers for a GT. http://www.americanmuscle.com/fr-52l-cylinder-head-right-1116.html http://www.americanmuscle.com/fr-52l-cylinder-head-left-1116.html

    AMJEFF

Helpful (0)

Will these headers fit up to a corsa xtreme cat back exhaust with x pipe?

BrandonW

  • These headers will fit up to the factory mid-pipe and may require modification to fit an aftermarket catback that comes with a mid pipe.

    KevinD92

Helpful (0)

How would we plug up the second o2 sensor hole?

JoseC

  • The secondary bungs can be plugged with o2 bung plugs or if you have wide-ban air-fuel-ratio sensors, they would plug into those secondary bungs.

    AMJEFF

Helpful (0)

I noticed these headers come with 2x holes near the collector, will I have to cap one of the holes if I don't have wideband o2 sensors?

Cameron

  • Yes, if you don't plan on using both O2 sensor bungs on these Borla Long Tube Off-Road Headers, you would need to cap one of them off.

    pserafi

Helpful (0)

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Customer Reviews (8) Write a Review

Overall Rating 5.0

out of 5 stars

Installation Time:Weekend

Installation Cost:$500-$1000

  • Loudness / Volume 5 5
  • Exhaust Note 5 5
  • Fit & Finish 4.875 4.9
  • Bang For Your Buck 5 5



  • 5/5

    Installation Time: Weekend

    July 03, 2017

    Borla Long tube

    Nice fit,amazing sound for people like the sound of american muscle V8

    George

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    April 27, 2017

    Wow!!!!

    The headers really brought my car to life. People around town say they can hear me driving around lol paired with the ford racing cat back exhaust, it gives your mustang that true muscle car sounds.

    Luis

    Year: 2017 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    April 17, 2017

    Awesome.

    Have it paired with ford racing by borla catback exhaust. The headers make the car so loud and I can definitely feel a performance boost. Definitely recommend.

    CraigP

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    April 10, 2017

    Best exhaust on the market

    This is the best sounding headers matched with Borla's 3" cat back system. If you love the sound of muscle cars or race cars you will not be disappointed with this system. The power gains are huge with a custom tune over 50 horsepower gain to the tire. Borla is the only exhaust I would ever put on any of my mustangs.

    RyanZ

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    November 21, 2016

    Power and sound!!

    These headers paired with a 2.5" ATAK system definitely deliver the low end punch to wake up the Coyote (and every neighbor within a mile). The exhaust note and volume are vicious and it feels like the car is going to rip a whole through space. If you are looking for just a little rumble and better sound, these headers are not for you. But if you want pure performance and be heard for miles around, this is what you want. Make sure you have this system professionally installed, it will save you a lot of headaches and frustrations.

    gbjones777

    Year: 2017 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    June 11, 2016

    happiness in a box.

    If your looking for sound I highly recommend these headers. Borla name speaks for itself. I have the atak 3 inch catback with borla headers and my gt is insanely loud. I actually feel bad for the people in my town when I drive around at night lol. I even had a random person follow me for about two miles just recording pulling out from red lights lol. Install was a bit of a pain spent the better part of a day on just one bolt because of the way the tubes run. Borla instructions are straight forward and easy to follow but I recommend a shop install if you can afford it. It will save you a lot of curse words.

    butthurtdailydriver

    Year: 2016 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: $500-$1000

    April 02, 2016

    More power and volume!

    Overall it was was worth the price and install cost that came with it. Paired this with the Borla Atak 3in for an even louder and better exhaust note and yes, more power. My stang was transformed into a beast. Not to many cars out there that will sound better or louder. The headers really woke up my 5.0, saw significant gains in hp and torque on the dyno. Definitely worth it.

    ClarityGrind

    Year: 2015 Submodel: GT

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    June 16, 2017

    Your neighbors will hate you

    If you're looking for a quick power and low-end torque then these headers will provide that along with a beastly roar. Granted, I do have the Borla ATAK 3" cat-back exhaust as well. The install was difficult because I used simple jack stands and there were some tight spaces to get in to, which made the install that much more difficult. Set a weekend aside just in case you run into problems. Most important of all though, take your time.

    PaulM

    Year: 2015 Submodel: GT

    Helpful (0)