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MAC 1-5/8 in. Chrome Unequal Shorty Headers (79-93 5.0L)

Market Price $228.80 You Save 13% ($29.85)
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$198.95

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  • Item 40069
  • MPN# E508692

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    Features & Details

    • Increases Horsepower and Torque
    • Shorty Unequal Length Header Design
    • Free Flowing Mandrel-Bent Tubing
    • Bright Chrome Finish
    • CARB EO Number: D-241-4
    • For Use with Manual and Automatic Transmissions
    • Fits 1979-1993 5.0L V8 Mustangs
    More Horsepower And Torque. Replace those restrictive factory manifolds with a set of MAC shorty headers to improve your Mustang's exhaust flow and increase your pony's horsepower and torque.

    Unequal Length Design. These MAC Performance Headers feature a shorty, unequal length design that in addition to making more power also cleans up your engine bay for a show-winning look.

    High Quality Construction. Constructed from 1-5/8" mandrel bent 16 gauge steel tubing so there are no kinks to rob you of power, these MAC Performance Headers feature 2-1/2" True Fit Collectors that eliminate the need for gaskets which are prone to leak and blow out. These headers are then completed in a bright chrome finish for good looks and a durable long life.

    CARB Certified. Best of all these MAC Mustang Headers are 50-state smog legal under Carb EO# D-241-4.

    Application. Designed as a direct bolt on, these MAC Shorty Unequal Length Headers will bolt straight up in the stock location to the factory Mid-Pipe on both automatic and manual 1979 to 1993 5.0L V8 Mustangs, including the LX 5.0, GT and SVT Cobra models, for improved exhaust flow and sound.

    Fitment: 1979 1980 1981 1982 1983 1984 1985 1986 1987 1988 1989 1990 1991 1992 1993 Details

    What's in the Box
    • (1) Driver side header
    • (1) Passenger side header
    • (16) Header Bolts
    • (2) Gaskets
    • (4) Threaded Bolts and Nuts
    • Bracket and Hardware
    Installation Info
    Tech Specs
    Header Specifications
    Header Type: Short Tube Finish : Chrome
    Type Mid Pipe Required: Standard Fitment: 1979-1993 5.0 V8 Mustangs
    Will it fit my Mustang?

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    4 Questions / 4 Answers

    Ask a Question

    Would these headers fit the Gt-40p heads?

    Al

    • The MAC Chrome Unequal Shorty Headers are not designed to fit the revised plug locations of the GT40P Heads.

      Rob D

    Helpful (1)

    Will these work with gt40 heads?

    TysonW

    • The MAC 1-5/8 in. Chrome Unequal Shorty Headers would be compatible with stock spark plug angle heads. This will include the GT40, GT40X, and various other GT40 aluminum heads. These headers would not work for GT40P heads with the revised spark plug angle. For GT40P heads, you would want to look at the headers designed for this spark plug angle, linked below: https://www.americanmuscle.com/mac-ceramic-unequal-shorty-7993-gt40p.html

      Rob D

    Helpful (0)

    Will these work with my 351 Windsor?

    CrystalB

    • Unfortunately, these Mac headers will not be able to fit on a 351 Windsor motor, there will be clearance issues within the engine compartment.

      AMDell

    Helpful (0)

    will the headers bolt on to pypes xpipe?

    5oman

    • These headers will not mate up to the Pypes x-pipe perfectly. I would recommend purchasing the accompanying MAC off-road pro chamber #40071 or the off-road h-pipe #40067 for absolute fitment.

      KevinD92

    Helpful (0)

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    Customer Reviews (17) Write a Review

    Overall Rating 4.2

    out of 5 stars

    Installation Time:Afternoon

    • Performance Gain 4.066667 4.1
    • Fit 3.75 3.8



    • 2/5

      Installation Time: Afternoon

      May 01, 2018

      Didn’t fit well

      Had to dent in next to steering shaft And passengers side won’t seal to h pipe (new) had to make ball and socket gasket

      propan27

      Year: 1990 Submodel: GT

      Helpful (0)

    • 3/5

      Installation Time: Afternoon

      April 10, 2018

      easy to install

      Could not fit a socket on the studs. There was little room for a wrench. but otherwise was an easy install.

      Dylan

      Year: 1988 Submodel: GT

      Helpful (1)

    • 3/5

      Installation Time: Full Day

      April 03, 2018

      Mac headers idk

      These are made well but where I had/have a problem with these headers are that the flange is against the block on drivers side, and my stock midpipe will not seal against the headers! I’ve tried several times! The steering shaft is against the header also! This pushes me into ordering Mac midpipe see if that fixes one of my problems! I bought these over the bbk headers thinking they might be better IDK!

      StephenM

      Year: 1988 Submodel: LX

      Helpful (1)

    • 5/5

      March 07, 2018

      Look great

      I bought these for my 91 gt. They look great but I've not installed them yet.

      MatthewS

      Year: 1991 Submodel: GT

      Helpful (0)

    • 5/5

      Installation Time: Less than 1 Hour

      August 21, 2017

      93 Mustang hatchback

      With the help from, American Muscle,, Lunati, Summit racing,I have a man's toy work in progress. Great products, great people.

      JimM

      Year: 1992 Submodel: LX

      Helpful (2)

    • 3/5

      Installation Time: Afternoon

      June 22, 2017

      Header fitment

      These are descent headers but for those with gt40p heads I do not recommend these. It is a tight fit for spark plug #4 even with 90 degree spark plug wires. Header touches the spark plug boot (4) so I will be going with different headers now

      theunderdog

      Year: 1989 Submodel: LX

      Helpful (2)

    • 5/5

      Installation Time: Full Day

      April 15, 2017

      Mustang 87 gt

      Amazing headers very very loud! And sound great adds good actual power.

      ChandlerH

      Year: 1987 Submodel: GT

      Helpful (2)

    • 5/5

      Installation Time: Afternoon

      February 16, 2017

      Headers

      good fit complete and fit well better than the off road pipes

      WilliamM

      Year: 1984 Submodel: Other

      Helpful (4)

    • 3/5

      August 04, 2016

      Easy installation great headers

      Great headers gives your fox a deep sound, shaft a Lil tight. Took about a hour to install, would of gave 5 stars but didn't come with COPPER gasket just a plain gasket. Also I recommend getting stage 8 header bolts.

      Kakarotyo7

      Year: 1990 Submodel: Other

      Helpful (3)

    • 4/5

      Installation Time: Afternoon

      October 13, 2014

      Mac Unequal Shorty Headers

      These are nice headers for the price, but I had to modify to fit my 1985 5.0 Stang. 1985 HO 302, EFI, has the o2 sensor in the manifold on the pass side and there is no port on the header. O2 sensor will have to be moved to the collector pipe right below the header. Also, the 85 exhaust does not mate up to these headers. It is smaller diameter pipe and does not line up. You will have to replace the x pipe with an 86 or newer pipe.

      motorhed74

      Year: 1985 Submodel: Other Florida, USA

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      January 31, 2014

      Great look and fit

      First off i havent rated the performance gain only because it's winter time and I'm doing a few more mods. Fitment of the headers wasn't a problem at all. The only problem i had on mine is cylinder number 4 plug wire boot will need to be modified. It rests against the header. As far as the steering shaft, i have at least 3/8" clearance. The headers came with everything except for gaskets. I ended up getting the BBK 1 5/8" gaskets. So far running it a bit in the shop i havent had any leaks. Unbolting the h-pipe will help the rest of the exhaust relax a bit for easier install to the converter flanges. Nice chrome finish brightened up the engine compartment and the welds looked good. So far i'm happy with them, just cant wait to drive it!!

      Shue93

      Year: 1993 Submodel: GT Kouts, IN 46347, USA

      Helpful (2)

    • 5/5

      Installation Time: Weekend

      January 25, 2014

      Well worth it

      Awesome headers. They are a direct fit and with the right equipment fairly easy to install yourself. These headers were fairly priced an boy do they sound mean. I'm getting that deep sound and the instant change of power that I didn't notice before. I absolutely recommend this product

      foxlifemustangs

      Year: 1993 Submodel: Cobra Sac,CA

      Helpful (3)

    • 5/5

      Installation Time: Less than 1 Hour

      January 24, 2014

      Mac headers

      These were ever easy to install and look great. Some horse power gains than stock

      sgraham2020

      Year: 1989 Submodel: GT Huntsville, AL, USA

      Helpful (1)

    • 5/5

      Installation Time: Afternoon

      January 21, 2014

      Sweet!

      Badass product. Good look and fit. Easy and quick install. Adds perfect throaty sound!

      Lovejoy

      Year: 1989 Submodel: Other Champaign, IL, USA

      Helpful (2)

    • 3/5

      Installation Time: Less than 1 Hour

      August 26, 2013

      good finish and decent quality for the money

      fit decent, steering shaft is very close, welds are nice and thick

      silvershark

      Year: 1990 Submodel: GT Cincinnati, OH, USA

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      May 06, 2013

      Mac Attack

      Search no more! These Mac headers combined with the Mac prochamber and Mac cat back is the best upgrade you can put on your Fox. The complete exhaust system gives it the classic Fox sound. The headers fit great and come with a copper gasket to seal it up right. Get ARP header bolts or locking bolts to complete the install.

      Ed03cobra

      Year: 1989 Submodel: GT Fredericksburg, VA

      Helpful (3)

    • 5/5

      Installation Time: Afternoon

      March 30, 2013

      1st Step For Exhaust Upgrade

      Caught these MAC shortys on sale and ordered them. Some of the best looking headers fresh out of the box that I've seen. Came with all the gaskets and hardware needed for install. Nice clean fit, really no issues there. 1 5/8 inch tubing so its a very nice upgrade from the restrictive stock headers. This should be the 1st step in upgrading your exhaust system for your Pony. Dont just open up the nostrils (muffler & pipes), start with the lungs and let your beast breath freely!

      MemphisLX50

      Year: 1989 Submodel: Other Memphis, TN, USA

      Helpful (3)

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