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MAC Ceramic Long Tube Headers (99-04 Cobra; 03-04 Mach 1)

Market Price $655.45 You Save 13% ($85.50)
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  • Item 40063
  • MPN# TF9902

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Features & Details

  • Increases of Up to 18 RWHP
  • Long Tube Header Design
  • Free Flowing Mandrel-Bent Tubing
  • Polished Ceramic Coated Finish
  • For Use with Manual and Automatic Transmissions
  • Fits 1999-2004 SVT Cobra and 2003-2004 Mach 1 Mustangs
More Horsepower And Torque. Replace those restrictive stock manifolds with a set of MAC Long Tube Ceramic Headers to improve exhaust flow and increase your Mustang's horsepower and torque. Increases of up to 18 RWHP have been seen when installed with a matching MAC shorty Mid Pipe (see drop down option above).

Ceramic Coating. These Long Tube Headers are completed in MAC's Polished Ceramic Coating that not only looks great, but reduce under hood temperatures to help increase horsepower and extend the life of the headers. Ceramic Coated headers will long out last both chrome plated and polished headers.

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 Long Tube 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 ceramic coated finish for good looks and a durable long life.

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.

Application. These Mac long tube headers are designed to fit the 1999-2004 SVT Cobra and 2003-2004 Mach 1 Mustangs with either a manual or automatic transmission. MAC Performance recommends using a MAC shorty Mid Pipe for the best performance gains.

Technical Note. This MAC Performance product is not legal for use in emission restrictive states.

Fitment: 1999 2001 2003 2004 Details

What's in the Box
  • (1) Driver Side Header
  • (1) Passenger Side Header
  • (16) Header Bolts
  • (4) 7/16" Steel Studs
  • (4) 7/16" Locking Flange Nuts
Installation Info
Tech Specs
Header Specifications
Header Type: Long Tube Finish : Ceramic
Type Mid Pipe Required: Shorty Fitment: 1999-2004 SVT Cobra
2003-2004 Mach 1
Will it fit my Mustang?
  • Cobra - 99, 01, 03, 04
  • Mach 1 - 03, 04

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Most Helpful Reviews

MAC long tubes

Just got these put on my Mach along with an x pipe, my exhaust sounds awesome!

Helpful (1)


These Headers Are Half the Price Of Kooks .... And Just as Good. They Exactly Hit Better than Kooks. Mac Design Tucks Away Better than The Other Companies. Bbk and Kooks tends to Hang Down A little Lower ...

Read More
Helpful (1)

Overall Rating 4.9 out of 5 stars
Read All 14 Reviews

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5 Questions / 6 Answers

Ask a Question

After these are installed, would I be able to freely drop the transmission or do I have to remove the headers ever I ever need to do transmission work?


  • You should not have issues when and if you are to drop a transmission in your Mustang with long tube headers attached.


Helpful (0)

Will I be able to drop the transmission with these installed?


  • You should not have to drop the transmission to install these headers. But you may have to drop the K-Member for an easier install.


Helpful (0)

Will these fit a Mach 1? I've seen these on multiple websites that say these will fit on Cobras and Mach 1's along with reviews stating the same. My question is if these are different.


  • They should bolt right up. You could double check with the manufacturer to be certain. The only difference I know of in the exhaust system of the two cars is behind the mid pipe.


Show 1 more answer Helpful (0)

Would cats have to be removed? Would my cats need to be removed when installing Longtubes or can you still keep your cats?


  • Yes, you will have to get a matching mid pipe. They may however offer one with cats. But the stock ones will have to go


Helpful (0)

Will this work with the MACH 1? And the SLP Mid X pipe? SLP does not make a set of longtubes for the MACH 1 :-( so i turned to the next best thing i just want to make sure this will fit the SLP (sectional) MID X PIPE that you can remove parts for fitment i.e. remove the down pipes to install the long tubes or just take the cats out for a swap .... just wanna make sure that i wont have like a HUGE gap or overlap .... any ideas or suggestions?


  • When it comes to buying the MAC Ceramic Long Tube Headers (99-04 Cobra; 03-04 Mach 1), or any long tube for that matter, you would be forced to by the same brand mid-pipe designed to go with that specific long tube header. Doing anything else will most likely require modifications.


Helpful (0)

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Customer Reviews (14) Write a Review

Overall Rating 4.9

out of 5 stars

Installation Time:Full Day

Installation Cost:0-$100

  • Performance Gain 4.833333 4.8
  • Fit 4.666667 4.7

  • 4/5

    Installation Time: Weekend

    November 15, 2016

    Sounds great but fitment

    I did a lot of research for the headers I wanted. I went with these guys bc its not the slip fit design which I heard leaks. Overall they sound and look great. I gave it a 4 star bc i had to shave my starter solenoid a good amount so it wouldn't touch and then the EGR wasn't lined up. I could not get it to slip back over so ill end up capping it. Linked these with Mac Prochamber which sounds great with minimal drone and Borla Stingers. Sounds so mean


    Year: 2003 Submodel: Cobra

    Helpful (1)

  • 5/5

    September 27, 2016

    MAC long tubes

    Just got these put on my Mach along with an x pipe, my exhaust sounds awesome!


    Year: 2003 Submodel: Mach 1

    Helpful (1)

  • 5/5

    August 30, 2016


    These Headers Are Half the Price Of Kooks .... And Just as Good. They Exactly Hit Better than Kooks. Mac Design Tucks Away Better than The Other Companies. Bbk and Kooks tends to Hang Down A little Lower than Mac. I will advise that you Use the Mac Xpipe or hpipe that was designed for Mac Longtubes, DO NOT MIX-MATCH THE COMBO YOU WILL RUN INTO FITMENT ISSUES! Very Fast Shipping By A.M all in All I'm Very Satisfied Really Makes a Difference With My 4 Valve '


    Year: 2004 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    August 27, 2013

    Best Buy for your money!

    The fit and finish on the MAC LTs are second to none. For the price and quality, you cannot beat them. MAC seems to be the only LT on the market that I could not find anyone who had install issues with. The power increase should be there too. I am doing a 4V Vortech swap in my GT. a friend saws 60hp increase on his Kenne Bell Cobra over stock manifolds and an O/R H Pipe.


    Year: 2002 Submodel: GT TN

    Helpful (3)

  • 5/5

    Installation Time: Afternoon

    April 14, 2016

    Awesome Headers

    These headers sound great and make a significant difference in performance. Coupled with the ProChamber, I do not have any issues with drone on the highway. I highly recommend these headers to anyone with a 99-04 V8 mustang.


    Year: 2004 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    April 12, 2016

    Mac long tube headers

    I installed these headers myself in my garage. Used the harbor freight engine support and it worked great. Dropping the k member took me about 2 hours but it's the only way to install these. Headers took about two hours to get on, you have to remove the starter and squeeze them in but they fit awesome! Amazing quality. About 3 hours to get everything back together but it's worth every second. You can feel the powers increase for sure. The only negative was fighting the egr tube. I recommend these.


    Year: 2003 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Weekend

    March 07, 2016

    For an 04 Mach 1....bravo!

    Not going to lie, I'm a novice grease monkey on a tight budget. No instructions and hard to find install walk throughs online but it was accomplished. No way around it, you've got to drop the k-member. Did not need to change out steering shaft with these as I have read on forums. Passenger side did needed starter removed to get the part in there but no room issues with re-install. Power gain and sound are extremely impressive. Wish I could of done this sooner. I installed by myself in my garage using jack stands and supporting the engine with a jack.


    Year: 2004 Submodel: Mach 1

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    February 21, 2016

    Mac longtube headers

    Awesome headers unfortunately if you are gonna run the EGR it's a little bit of a fight to get it matched back up


    Year: 1999 Submodel: Cobra WA

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    December 17, 2015

    03 Cobra MAC Headers

    Great fit easy install. These MAC headers sound great! Thanks AM.


    Year: 2003 Submodel: Cobra Odessa TX

    Helpful (1)

  • 5/5

    Installation Time: Afternoon

    December 10, 2015

    Worth it

    Ordered these headers along with BBK off road X pipe and a bama tuner and they sound phenomenal and the gains I got make it all well worth it, thanks American muscle for the awesome customer service and shipping and the great product


    Year: 2003 Mountain home, Arkansas

    Helpful (1)

  • 5/5

    Installation Time: Full Day

    August 27, 2015


    I like this product and would recommend it to anyone who is looking for long tube headers and doesn't want to spend a ton of money!


    Year: 2003 Submodel: Cobra Colorado

    Helpful (1)

  • 5/5

    Installation Time: Shop Install

    Installation Cost: 0-$100

    July 05, 2014

    Build Up!

    They look amazing. Didn't take long for the shop to install them. I can feel a difference when I hit the gas.


    Year: 1999 Submodel: Cobra Norfolk, VA, USA

    Helpful (1)

  • 5/5

    March 16, 2017

    Mac headers

    Havent installed them yet but putting them on a 95 mark viii motor thats going in a 65 f100 short bed with irs. Headers look great and built well.


    Year: 1999 Submodel: Cobra

    Helpful (0)

  • 5/5

    Installation Time: Full Day

    March 16, 2017

    MAC Longbtube headers are awesome!

    I honestly don't have anything bad to say about these headers. They lined up perfect and fit was tight as I was told. My exhaust never sounded better and my car never felt better. Also big difference on temperature between ceramic and chrome headers. Would buy these headers over and over again. Thanks AMERICAN MUSCLE


    Year: 2003 Submodel: Mach 1

    Helpful (0)

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