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MAC Off-road Pro Chamber Mid-Pipe (05-09 GT)

11 Reviews
Our Price

$449.99

  • Item #40013
  • MPN #PC2005
  • Market Price $511.99
  • You Save 12% ($62.00)
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Customer Photos
Features
  • Improves exhaust flow for more power
  • Unique Pro Chamber crossover design
  • For off-road, track use
  • 2.5" mandrel bent stainless steel tubing
  • Fits 05-09 GT Mustangs
Description
Increase Exhaust Flow. Get rid of those power robbing factory catalytic converters and uncork your Mustangs hidden power with a MAC Performance Off-road Mid-Pipe. Featuring their exclusive Pro Chamber style crossover and free-flowing mandrel-bent piping, this high performance mid-pipe will dramatically improve exhaust flow for more horsepower and torque. Aggressive Muscle Car Rumble. This free flowing MAC off-road mid-pipe not only increases the horsepower and torque of your Mustang, but with its unique Pro Chamber cross over design it adds a more aggressive muscle car rumble to the sound of your exhaust, that the standard H-pipe just can't match.

High Quality Construction. Constructed from durable 2.5" diameter stainless steel tubing, this MAC Performance mid pipe is CNC mandrel bent to ensure maximum exhaust flow, so there are no kinks to rob you of power.

Application. This MAC Performance Pro Chamber Off-road Mid-pipe is designed as a direct bolt-on for the 2005-2009 4.6L Mustangs, including the GT and Bullitt with either aftermarket short tube headers or the stock factory manifolds installed. Intended for off-road, track use only, does not include catalytic converters.

Mustang Fitment: 2005 2006 2007 2008 2009 Details

What's in the Box
  • (1) Off-road Mid-pipe
  • (2) Down pipes
  • (2) Clamps
Installation Info

Installation Time: (approx) 2 Hours

Difficulty Level:Advanced mechanical skills required.

Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard Type Headers Required: Shorty or Stock Manifolds
Piping Material: Stainless Steel Piping Size: 2.5"
Catalytic Converter: "No" - For off-road use only Fitment: 2005-2009 GT, Bullitt
Fitment
  • Bullitt - 08, 09
  • GT - 05, 06, 07, 08, 09

Most Helpful Reviews View All

Overall Rating 4.4/5 Write a Review
5/5
Off-road Mac Prochamber

The fit and finish of this piece is far superior to the Magnaflow catted X-pipe I've had on my car before. With my Corsa mufflers it gives it a unique clean sound, unlike every other Mustang out there

Read More
Helpful (5) (0)

5/5

Top 1000 Contributor

Loud Note Indeed!

This is a solid product that was installed in tandem with the Roush Extreme Performance Catback. This thing roars INCREDIBLY LOUD! I wanted to go pro chamber because I was told this rumbles even lower

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Helpful (3) (0)

Customer Photos (2) View All

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Q & A (6 Questions, 6 Answers) Ask a Question

DOES THIS INSTALL REQUIRE ANY WELDING?

BULLITT38 Year: 2006 Model: GT

Question Resolved
Good Question (0) (0)
  • Nope, it will bolt right into your exhaust system.

    Helpful (0) (0)

    RobH Year: 2011 Model: GT

Show 2 more answers

if i decide to get mac long tubes, will i have to buy a new h pipe or can i just cut it into a shorty pipe so it will fit the longtubes

cs08 Year: 2008 Model: GT

Question Resolved
Good Question (0) (0)
  • If you swap to long tube headers, you will need to swap this mid-pipe out as well for a Mac Shorty mid-pipe for proper fitment. This mid-pipe is meant for use with the Mac Shorty headers or stock manifolds only.

    Helpful (0) (4)

    LisaS Year: 1992 Model: GT

pypes pype bomb Any One have it paired with pypes pype bomb axel backs? Like the sound? direct fit?

phoenix Year: 2007 Model: GT

Question Resolved
Good Question (0) (0)
  • While I don't have the Pypes, I do have another muffler-delete catback system and the sound is LOUD...very loud. If you're ok with a louder overall system, this is the way to go! Regarding the direct fit, the Pypes axel-back with fit right over where the stock mufflers were

    Helpful (0) (0)

    Rooce Year: 2008 Model: GT

    Top 1000 Contributor

Show 1 more answer

Reviews (11) Write a Review

  • 5 Stars .64 64%
  • 4 Stars .18 18%
  • 3 Stars .09 9%
  • 2 Stars .09 9%
  • 1 Stars 0 0%
4.4

out of 5 stars

9 Customers Recommend this Product

Installation Time:Afternoon

Installation Cost:0-$100

  • Loudness / Volume: 4.6 4.6/5
  • Exhaust Note: 4.8 4.8/5
  • Fit & Finish: 3.6 3.6/5
  • Bang For Your Buck: 4 4/5
Filter By Sort By
  • 5/5

    Off-road Mac Prochamber

    August 08, 2011

    The fit and finish of this piece is far superior to the Magnaflow catted X-pipe I've had on my car before. With my Corsa mufflers it gives it a unique clean sound, unlike every other Mustang out there with Flowmasters. I would definitely recommened this to anyone looking to be different and get a well made mid-pipe.

    Eric Slade

    Year: 2007 Model: GT Driving Style: Daily Driver

    Helpful (5) (0)

  • 5/5

    Loud Note Indeed!

    March 24, 2013

    This is a solid product that was installed in tandem with the Roush Extreme Performance Catback. This thing roars INCREDIBLY LOUD! I wanted to go pro chamber because I was told this rumbles even lower than an h-pipe soundwise, and I wanted that stereotypical muscle car sound. In actuality, it's not as low as I had thought it would be...perhaps it's because this is an off-road pipe. However, that's not to say I don't approve of the volume and overall sound. With the new exhaust, this mid-pipe produces no drone and no other major issues. Just be ready for overall fatigue from the volume if taking looooong trips. This pipe definitely turns heads and I'm very happy not only with the purchase, but the help I received from Tina at AM, who talked me through the pros and cons of the mid-pipes

    Top 1000 Contributor

    Rooce

    Year: 2008 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Fort Myers, FL, USA

    Helpful (3) (0)

  • 2/5

    Ehhh

    August 21, 2014

    I've had a pro chamber before on my old mustang and it was a perfect fit and had zero problems. However whoever made this one must have been having a very off day. The passenger side o2 sensor was welded in the wrong place putting it directly in front of the stud. Both pipes were very crooked and had to be heated and bent to get it to fit. And the hangers are about 1.5 inches too far apart, all this making it much more difficult to install than it ever should be. I've been working on cars 12+ years and have never had such difficulty just swapping an exhaust pipe, after all the trouble I got it to work though and it does sound great but I hope no one else has this problem.

    Justin454

    Year: 2007 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2

    Helpful (1) (0)

  • 4/5

    Great Muscle car sound!

    May 28, 2013

    Great Mid pipe, has a nice old school muscle car sound. Hardest part of the install is taking the factory H and cats off. Off Road is the way to go, not too loud at idle or cruising but when you give it some gas it sounds MEAN!!!

    Sully08GT

    Year: 2008 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Delaware

    Helpful (1) (0)

  • 3/5

    Problems

    September 11, 2012

    I got this mid pipe in last night. When I opened it the mid pipe was just laying loose in the box no bubble wrap nothing. It was free too just be clanging around getting dented scratched or smashed. I know this is stainless steel and would be hard to bend but I used to work for ups and I know how they handle there stuff. So this morning I went to install the exhaust factory exhaust came off easy. I took the 2 02 sensors off the right side and one off the other as I put the sensors on the new mid pipe the first went on fine but the 2nd one went in about 3/4 of the way and stopped ( I did not cross thread there was no tension when screwing them in the 1st 3/4 of the way). So I tried backing it out it wouldn't budge! Finally after some good torque it broke free and slowing unscrewed when I got it out the people that had wielding in everything left a bead in the threads which completely trashing the threads on my o2 sensor. I had to buy a new o2 sensor (50$) also had to buy a tool to re thread the o2 hole (7$). Very very frustrating! Also the bends in the piping were not real smooth you could tell we're they had to get a couple bites. I had heard great things on this mid pipe but was kind of dissapointed. On a good note it does sound great with my flow master 40 series axle backs. I could be a rare case but just a fore warning make sure you check the o2 threads before putting your sensor on. Besides the product I have had a few prior questions and AM has had great customer service and the package came on time ( although the bad packaging)

    Chapman2787

    Year: 2008 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 1 Fayetteville, AR, USA

    Helpful (1) (0)

  • 5/5

    Excellent Mid Pipe

    May 23, 2012

    Very pleased with the sound of the O/R Prochamber... Not overwhelming but very nice indeed! Drone between 50 - 70 mph is not overwhelming either... But it's actually nice to be able to make a little bit of noise ONLY if you want to by pushing the "pedal to the metal!". I have the Prochamber paired up with Bassani Axleback mufflers and so far my friends who also own Mustangs love the sound. Again, I am very pleased with the Prochamber/Bassani setup but I have no doubts that this mid pipe will sound great with most other cat back or axleback systems. This pipe is worth it. BUY IT!!!

    Miguel

    Year: 2007 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 Cocoa, FL

    Helpful (1) (0)

  • 5/5

    AWESOME H-PIPE

    July 03, 2012

    The Mac Pro-Chamber is a an awesome mid pipe. The sound is just what I was looking for, deeper, more aggressive, but not to loud. It sounds like an old school muscle car, even with the stock mufflers. The quality of the pipe is as good if not better than expected. As for installation, good tools and a little experience are a must. A lift is nice and makes the job a whole lot easier. The check engine light did come on after driving for a while. I understand that a tuner will solve this problem. I can't wait to get my tuner / rear end gear combo along with a CAI to finish off my project. P.S. I placed my order after 5pm on a Thursday and received my pipe on Saturday. Great job American Muscle

    BULLITT38

    Year: 2006 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 2 NEWPORT NEWS VA

    Helpful (0) (1)

  • 5/5

    mean sound

    October 01, 2011

    I installed this offroad h pipe on my 06 saleen supercharged to give my car a meaner sound. And it worked. Sounds great. Install was pretty easy, except for hard to get at o2 sensor. Otherwise it was a piece of cake. When I give her some gas it sounds pretty darn mean. Using it with saleen exhaust (has magnaflow mufflers). Now they can hear me coming.

    Featured

    Don888

    Year: 2006 Model: Other Driving Style: Street / Strip 'Stangs I have owned: 3 forest lake ,mn

    Helpful (1) (3)

  • 5/5

    Awrsome sounding machine

    July 27, 2012

    Product was easy to install and sounds great. Fast shipping, honestly the best customer service I have ever had. Will be coming back to purchase anything else that I need/want for my baby.

    Skizzle57

    Year: 2007 Model: GT Driving Style: Daily Driver 'Stangs I have owned: 4

    Helpful (0) (2)

  • 4/5

    Good as long as it fits

    February 06, 2015

    All in all good product in the end, getting it on was not easy the hangers sat too far apart and the driver side where it bolts to the headers wasn't the right size I had the bend the bolts from the headers closer together so I could tighten it down without a major exahaust leak if it were made better it'd had been an easy 1-2 hour job but after about 10 hours I got it on well enough, well worth it as long as you don't run into the same problem

    07CaliSpecial

    Year: 2007 Model: GT Driving Style: Street / Strip 'Stangs I have owned: 2

    Helpful (0) (0)

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