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MAC Off-Road X-Pipe (99-04 4.6L w/ Long Tube Headers)

6 Reviews
Our Price

$189.99

  • Item #40066
  • MPN# X994

  • Market Price $224.99
  • You Save 16% ($35.00)
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Customer Photos
Features
  • Improves exhaust flow for more power
  • Raspy Race Car Growl
  • For use with MAC Long Tube Headers
  • Intended for off-road, track use
  • 2.5" mandrel bent aluminized steel tubing
  • Fits 1999-2004 GT, Bullitt, Mach 1 and Cobra Mustangs
Description
Improves Flow For More Power. Add even more horsepower and torque to your 4.6L Mustang by eliminating those power robbing factory catalytic converters with a brand new MAC Off Road Shorty X-Pipe. This off-road shorty X-pipe when combined with a pair of MAC Long Tube Headers will greatly improve your Mustangs exhaust flow for an increase in horsepower, torque, and throttle response.

Race Car Growl. This free flowing Mac Performance mid-pipe will not only increase horsepower and torque, but it also adds a crisp raspy, race car growl to the sound of your exhaust with its modern "X" crossover pipe design.

High Quality Construction. Mandrel bent from durable 2.5" steel tubing so there are no kinks to rob you of power, this MAC Performance mid-pipe has been hot-dip coated with aluminum-silicon alloy to aluminize the steel to protect against corrosion and rust.

Application. This MAC Performance Off-road Shorty X-pipe is designed for use on 1999-2004 GT, Bullitt, Mach 1 and Cobra Mustangs with MAC Performance Long Tube Headers installed. Intended for off-road, track use only, does not include catalytic converters. Technical Note. This MAC Performance product is intended for off road use and is not legal for use in emission restrictive states.

Fitment: 1999 2000 2001 2002 2003 2004 Details

Won't fit? Add an exception

What's in the Box
  • (1) Mid-pipe
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Shorty "X" Type Headers Required: MAC Long Tube
Piping Material: Aluminized Steel Piping Size: 2.5"
Catalytic Converter: No - For off-road use only Fitment: 1999-2004 GT & Cobra Mustangs
Will it fit my Mustang?
  • Bullitt - 01
  • Mach 1 - 03, 04
  • Cobra - 03, 04, 99, 01
  • GT - 99, 00, 01, 02, 03, 04

Most Helpful Reviews

4/5
Good product could be a better fit

I had installed these on my 04 mustang gt with a set of mac long tube headers. The fitment of the x pipe was about a quarter of an inch off so i had to bend and tweak this x pipe to work. Overall wasn't ...

Read More
Helpful (1)

5/5
Excellent!!

Great fit, sounds mean with my Mac long tubes and Borla exhaust. Would recommend 100%

Helpful (1)

Read All 6 Reviews
Overall Rating 4.7 out of 5 stars

Customer Photos (4) View All Photos

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2 Questions / 1 Answers

Ask a Question

would this work with pypes long tube?

charlie0408 Year: 2002 Model: GT

would they fit with a pype longtube headers?

charlie0408 Year: 2002 Model: GT

  • This shorty mid-pipe is intended to be used with the MAC Long Tubes. As a general rule of thumb when installing Long Tube Headers, the same brand shorty mid-pipe should be used to ensure proper fitment. That being said, you should be able to install this shorty o/r x-pipe with the Pypes Long Tubes. Just be mindful that it may not be a direct bolt-on and some minor adjustments may be needed for a proper install. Hope this helps.

    LisaS Year: 1992 Model: GT

    Good Answer (0)

Question Resolved

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Customer Reviews (6) Write a Review

Overall Rating 4.7

out of 5 stars




  • 4/5

    January 30, 2014

    Good product could be a better fit

    I had installed these on my 04 mustang gt with a set of mac long tube headers. The fitment of the x pipe was about a quarter of an inch off so i had to bend and tweak this x pipe to work. Overall wasn't bad took about 30 minutes to install. The sound is amazing a nice smoother idle with a little bit of tone and a nice roar when you open it up. Ts a good item and definitely recommend to anyone thinking of a a long tube set up.

    termigt92

    Year: 2004 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 3 Wilmington, NC, USA

    Helpful (1) (0)

  • 5/5

    March 22, 2013

    Excellent!!

    Great fit, sounds mean with my Mac long tubes and Borla exhaust. Would recommend 100%

    Gem92

    Year: 1999 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 1 Toronto, ON, Canada

    Helpful (1) (1)

  • 5/5

    July 24, 2013

    Great fitment quality and sound

    This Mac offroad shorty X pipe is a very good quality midpipe, it sounds amazing and fits perfectly up to the Mac longtube headers with no leaks, and it looks very nice too, if your going with longtubes like I did, the Mac offroad shorty X pipe is the way to go! And not only that American Muscle has the best customer service I've ever had and I have been buying from them for years , you can't go wrong with this X pipe or American Muscle. Thanks American muscle! Ill be ordering again soon!

    SatinStang

    Year: 2003 Model: Mach 1 Driving Style: Daily Driver 'Stangs I have owned: 3 Easley, SC, USA

    Helpful (0) (1)

  • 4/5

    July 04, 2015

    Sounds great, small fitment issue

    Put this midpipe behind new MAC longtubes, only issue was fitment. On front end of pipe that bolts to headers it had to be spread slightly to line up with the headers. Otherwise sealed up tight with no leaks soo far, sounds amazing flowing into Borla S (stingers)

    02Saleen

    Year: 2002 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2 Iowa

    Helpful (0) (0)

  • 5/5

    May 29, 2015

    Great product

    Fitment is perfect with my Mac long tubes, sound great, just switched from h pipe to x pipe and I'm loving it

    Sonicbluegt

    Year: 2004 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Perry, GA

    Helpful (0) (0)

  • 5/5

    February 17, 2015

    Mac daddy!

    Just done installing the mac x pipe and long tube headers. Sounds awesome! Nice bump in power and a killer cackle. Everyone should have these parts on their pony.

    GearheadIndy

    Year: 2003 Model: GT 'Stangs I have owned: 1 Avon, IN

    Helpful (0) (0)

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