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Pypes 1-7/8 in. Long Tube Off-Road Headers (15-17 GT)

Market Price $1,086.99 You Save 12% ($126.31)
Our Price

$960.68 (pair)

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  • Item 404903

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    Features, Video & Details

    • Improves Rear Wheel Horsepower and Torque
    • Increases of over 50HP with a tune
    • Long Tube Header Design
    • Three-Inch Off-Road Connection Pipes
    • Free Flowing Mandrel-Bent Tubing
    • 304 Polished Stainless Steel Construction
    • 1-3/4 to 1-7/8 Inch Step Header with 3-Inch Collector
    • Intended for Off-Road Track Use
    • Requires 3-Inch Aftermarket Cat-Back
    • Fits Left Hand Drive Models Only
    • Fits 2015-2017 GT Mustangs

    Review & Installation Video

    Review & Install Video

    Improves Horsepower and Torque. Make everybody eat your dust by installing a set of Pypes Long Tube Headers on your Coyote powered GT Mustang. Engineered to improve the exhaust flow of your 5.0L Mustang, these Pypes Off-Road Headers will increase rear wheel horsepower and torque. Increases of 50 RWHP has been seen with a custom tune. Pypes 1-7/8 Inch Long Tube Off-Road Headers are ideal for use on naturally aspirated 5.0L Mustangs, but really come to life when you decide to step up to a bigger cam or supercharger.

    Quality Construction. Pypes 304 stainless steel Long Tube Exhaust Headers are manufactured using step tube technology. These Long Tube Headers are constructed from free flowing CNC mandrel-bent 1-3/4" primary tubes that step up to 1-7/8 inches and then merge at a 3-inch collector. The collector features a power spike design for excellent exhaust flow. Pypes Long Tube Headers are then completed in a bright polished finish for impressive good looks.

    Required 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 Pypes Long Tube Off-Road Headers are specifically designed to fit the 2015 to 2017 GT Mustangs equipped with the DOHC Coyote 5.0L V8 engine. These Headers with connection pipes are intended to be installed with an aftermarket 3-inch catback exhaust system.

    Please Note. Oxygen Sensor Extensions are required for installation. Sold Separately.

    Technical Note. 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

    MPN# HDR78SK-3

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Driver Side Long Tube Header
    • (1) Passenger Side Long Tube Header
    • (2) Off-Road Connection Pipe Assemblies
    Installation Info
    Tech Specs
    Header Specifications
    Header Type: Long Tube Type Mid Pipe Required: 3" Aftermarket
    Material: 304 Stainless Steel Finish: Polished
    Catalytic Converter: "No" - For off-road use only Fitment: 2015-2017 GT Mustangs
    Will it fit my Mustang?

      Customer Photos

        Questions & Answers (14)

        5 Top Rated Questions

        Will these bolt up directly to my borla 3 inch cat back?

        Will these directly bolt up to my 3 inch borla atak?

        Do these headers work with Roush x pipe and Roush axle back exhaust?

        • These headers require an aftermarket 3-inch cat-back exhaust system.

        Helpful (0)

        In the video it says the o2 extensions will come in the box, but in the discription it says they are sold separately, which is it?

        Will these fit on a lowered mustang

        • These will fit on lowered Mustangs.

        Helpful (0)
        Post Your Question
        9 More Questions
        In the note it lists the sensors are sold seperately. Which O2 sensor extension will I need to purchase? And how many will I need to purchase? 1 answer
        I have corsa sport catback. Will these bolt right up to them? Or will I need anything else? Thanks! 1 answer
        Will these work with the awe track cat back? 1 answer
        Would the the 1 3/4” piping before the step up rob any power? 1 answer
        What would happen if these were ran without a tune? 1 answer
        Will these headers fit a 3” Corsa catback? 1 answer
        Will these work with a 2015 GT Flowmaster Outlaw Catback? 1 answer
        Will this give me a check engine light? If so how can I go about it not giving it to me? 1 answer
        will these headers connect to stock exhaust? 1 answer

          Customer Reviews (3) Write a Review

          Overall Rating 5

          out of 5 stars

          Installation Time:Full Day

          • Loudness / Volume 4.666667 4.7
          • Exhaust Note 5 5
          • Fit & Finish 5 5
          • Bang For Your Buck 4.666667 4.7

          • 5/5

            Installation Time: Full Day

            April 04, 2019

            GET THESE!!!

            Good lord did these wake the 5oh up! Power and sound is AMAZING! I paired these headers with AWE Track edition Cat-back and I may by biased but they are the best exhaust combo for the S550!!


            Year: 2015 Submodel: GT

            Helpful (2)

          • 5/5

            Installation Time: Full Day

            November 23, 2018

            Best Bang for Buck

            FIt was perfect, the header bolts provided are the wrong thread pattern for the head. Simple fix at Lowe's. Headers sound amazing with MBRP 3" Race Catback. Throaty and deep sounding and no raspiness. Quiet when cruising and pretty loud when driven hard without sounding too overbearing.


            Year: 2016 Submodel: GT

            Helpful (6)

          • 5/5

            Installation Time: Full Day

            August 31, 2018

            Pypes long tube headers

            This is an awesome product! Great materials and a great addition to your car...the performance is crazy and the sound is even better.


            Year: 2015 Submodel: GT

            Helpful (11)