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MAC Off-Road Pro Chamber Mid Pipe (11-14 V6)

AmericanMuscle no longer carries the MAC Off-Road Pro Chamber Mid Pipe (11-14 V6). Please check out 2010-2014 Mustang H-Pipes for an updated selection.

Features & Details

  • Improves Exhaust Flow for More Power
  • Unique Pro Chamber Crossover Design
  • Intended for Off-Road, Track Use
  • 2.5" Mandrel-Bent Stainless Steel Tubing
  • For Use with Stock Manifolds or Shorty Headers
  • Fits 2011-2014 V6 Mustangs
Increase Exhaust Flow. Get rid of those power robbing factory catalytic converters and uncork your V6 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 V6 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 2011-2014 3.7L V6 Mustangs with either aftermarket short tube headers or the factory manifolds installed. Intended for off-road, track use only, does

not include catalytic converters.

Please Note. Stock 2011 V6 Mustangs come stock with a Mid Pipe that resembles both the H-Pipe and X-Pipe designs. This hybrid Mid Pipe was created by Ford to help add additional power and sound to the V6 straight out of the factory. This MAC aftermarket Mid Pipe will further help you reach maximum air-flow equaling additional power.

Fitment: Details

MPN# PC2126

CA Residents: WARNING: Cancer and Reproductive Harm -

What's in the Box
  • (1) Off-road Mid-pipe
  • (2) Down pipes
  • (2) Clamps
Installation Info
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: 2011-2014 V6
Will it fit my Mustang?

    Customer Photos (2) Submit Your Photo

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      Questions & Answers (14)

      5 Top Rated Questions

      Using bby shorty headers would i be able to keep stock cats ?

      • From my understanding, this mid-pipe will delete the catalytic converters.

      Helpful (0)

      Hi AM, I have a 2014 mustang how deep will the sound be with this Mac Pro chamber? I have an AirAid CAI, Magnaflow Race Series AB, and a tune and my BBK shorty headers will be coming in any time soon now. But will this deepen my exhaust tone and how loud would it be?

      • This mid-pipe would be deeper at lower RPMsbut at higher RPMs will open up and get a little raspy. 

      Helpful (0)

      I have a 14 mustang automatic I am looking for a more deep sound without rasp, I have the touring axle backs on it now and want to add bbk shortys and this h pipe, will this make it less loud then the s type borla or louder? Also will I need anything else if I ordered these with my tourings I have now

      • Adding MAC Off-Road Pro Chamber Mid Pipe will make it comp[arable to the S type because of the lack of cats. They will be just as loud if not a little louder.

      Helpful (0)

      Assuming I have a bone stock '13 3.7, what will be the difference in terms of volume and tone between adding an H-Pipe or the MAC Pro Chamber Pipe?

      • The pro-chamber is basically an H-pipe on steroids. So an H-pipe is designed to bring the tone to a bit of a deeper sound, and because of this it's a bit quieter than an X-pipe. So with that being said, the pro chamber will be even deeper and slightly quieter still relative to an H-pipe.

      Helpful (0)

      Hi AM, What exactly is the difference between Pro Chamber and an H-Pipe? Thanks.

      • The difference is that the H-pipe connects the right and left exhaust pipes with a single pipe. The Pro Chamber connects it with an actual chamber that will not only increase the after header sound but will increase the amount of flow to exit.

      Helpful (0)
      Post Your Question
      9 More Questions
      Hi AM, I have a 2013 V6 with Roush ABs CAI, along with BBK Shorties. To keep the car legal, I plan to add Pypes High Flow Metallic Cats with this mid-pipe. Am I able to do that? Will this mid pipe bolt right up onto my BBK shorties? What changes will I notice in terms of volume and tone? Thanks! 1 answer
      How raspy is this mid pipe? 1 answer
      Do i neec to buy anything else with these? 1 answer
      Can you re-use the o2 sensors? 1 answer
      Is there a loss in low end torque due to cats being removed? If so, would it be better to keep the stock cats and do a cut and weld install for this pipe? 1 answer
      Because the cats are gone, is there a constant gassy smell in the cabin or from out the exhaust? 1 answer
      Will this fit with a Flowmaster Force 2 axle-back exhaust on a V6? Will this fit with a Flowmaster Force 2 axle-back exhaust on a V6? 1 answer
      Do you have a sound clip? Your info page about Xpipe vs Hpipe said the exhaust pages are supposed to have sound clips. 1 answer
      What are the approximate horsepower and torque gains with this off road mid pipe? 1 answer

        Customer Reviews (8) Write a Review

        Overall Rating 3.6

        out of 5 stars

        Installation Time:Afternoon

        Installation Cost:$100-$250

        • Loudness / Volume 4.75 4.8
        • Exhaust Note 3.875 3.9
        • Fit & Finish 3.375 3.4
        • Bang For Your Buck 3.5 3.5

        • 4/5

          Installation Time: Afternoon

          May 30, 2018

          MAC off-road H-pipe

          The only complaint I have is that the pipe hangs relatively low, even after Jacking it up and re-tightening. Other than that it’s a relatively easy install, and sounds great but isn’t that loud.


          Year: 2014 Submodel: V6

          Helpful (5)

        • 3/5

          Installation Time: Shop Install

          Installation Cost: $100-$250

          September 07, 2017

          Part 2 Review

          To begin with, your cold starts will have a some amount of rasp with some hints of deep rumble here and there as the revolutions begin to drop but they will be very loud and who doesn't love an extra loud cold start. Second, at idle, it is louder but it comes with the price of the gassy smell. Simply rolling up your windows will fix that for you. When rolling, you won't smell it if you have the windows down. Please be advised, if you have an O/R pipe and your car is a daily, because of the volume of the pipe, having a conversation inside won't be so pleasant. Third, as I said in my previous review, there is plenty of rasp throughout the powerband HOWEVER, you'll learn to manage it by shifting at certain points with a combination of how heavily you put your foot on the gas. For example, I learned to cruise in the city (NYC) at no more than 30 throttle and I must shift before 2,900. If I want to shift pass pass that, I need to get to a 50 throttle between 3,000-3,100RPMs (that's where it gets annoyingly raspy) and if I maintain that 50 after 2,900 it is no longer raspy but the deep rumble begins to faintly disappear. Cruising through the city managing the rasp very well will result in breaking necks and a smile on your face. Please keep in mind, this is a V6, not a V8, so there will be times where the rasp will come out and you won't be able to do anything about it. That's something that I've learned to accept and you will have to too if you get this pipe. Fourth, a personal experience of mine, when I take off normally from a green light and the following light is still red AND I maintain at 1st gear, when letting the gas go and it drops in RPMs, this beast ROARS from 3,000-2,000. This is something that I absolutely love and can't deny it. This will feed your Mustang pride and will make you feel powerful, especially around Hemis', SRTs, SSs, Ms, and AMGs. Fifth, this mid pipe REQUIRES some amount of time to break in before the raspiness begins to fade away. I had this O/R set up for 3 months and the rasp was still there HOWEVER, it has some minimal deep tone to it. The best way to break it in quicker is to drive (I recommend highways at night) at high RPMs and endure that painful rasp. Practicing your 0-60s also do the trick. Sixth, THE VOLUME IS THERE. Before, I had Roush ABs, CAI, and BBK Shorties. On a volume scale of 1-10, assuming 5 is bone stock and 7 my previous set up, adding this pipe will sit you at around a 9. If you currently have muffler and/or resonator deletes, it will be more than what you bargained for, especially for a V6. Finally, I STRONGLY RECOMMEND buying the cats offered here for 11-14 models when purchasing this pipe. Install both at the same time. THE PYPES CATS HELP ELIMINATE 85 OF RASP, PLUS DEEPENING THE TONE, ALMOST LIKE AN ARTIFICIAL 5.0 (Please refer to that product to read my review there!) As for power gains, this pipe had to be installed with a tuner, so, yes, I can definitely feel the change but that doesn't necessarily mean the car now has 300RWHP. What I can share with you guys is that my 0-60 dropped from 6.4 to 6.2 on 87OCT so that's good. Also, that the 1st and 2nd gear are a whole new thing when I step on it. The pedal is very sensitive w/ a tune especially with 93OCT. I had to keep it on 87 for NYC. The car does sound throatier but no, the tuner did not do that. That crossover design it what helps produce it. With my setup, I think I could be sitting between 275-285RWHP. I've been told by some AM staff that the BBK Throttle Body COULD possibly tone the rasp, along the Pypes cats I mentioned earlier. In the end, I give this product and AM a solid 3 stars because if you're not a fan of rasp, you'll end up spending another $300 for a set of cats labor OR $ 4xx.xx for new axle backs or catbacks. Because it's an off-road and AM did not bother to do the effort to also add a catted version, you'll HAVE TO spend an extra $400 for a Tuner. This $475 ended up costing me almost $1,200.


          Year: 2013 Submodel: V6

          Helpful (17)

        • 3/5

          Installation Time: Shop Install

          Installation Cost: $100-$250

          September 07, 2017

          Part 1 Review

          This is the same guy who gave this pipe 2 stars earlier and it's only fair to MAC, AM, and the rest of you guys that I also share my COMPLETE HONEST OPINION after having this product installed during my Off-Road period. For this section, I'll share my opinion based off how AM marketed this mid pipe. Increased Exhaust Flow: Absolutely. I love loud but I personally think it's a little too loud for NYC. A noticeable volume increase especially if you have swapped your mufflers out for aftermarket ones. Aggressive Muscle Car Rumble: Yes, BUT it does come with a price of lots of rasp. I will dive into detail with this in Part 2 of this review. High Quality Construction: AM Staff has yet to confirm the steel grade on this mid pipe. Though it says "Stainless Steel", that it still doesn't confirm the grade on it. My educational guess is that this MAY be a 409-grade. Why? Because my BBK Shorties are 304s and when I took them out of the box, they were clean and shiny and after 8 months installed, they still have a dull grey color and the funny thing is that they're not ceramic. When I took the mid-pipe out of the box, it smelled like dirty steel, it was greasy and dusty. I would hate to think that AM is charging almost $500 for Aluminized Steel. Application: There was a fitment problem with the stock Over-Axle Backs. They were the same diameter so the mechanic had to expand the diameter tubing on the mid pipe. As for the other end, this MAC hooked onto the BBKs just fine. In the end, AM should either carry more H-pipes for the V6 or simply be more detailed about this product. Upload a video, HP gains, be honest about the product, etc.


          Year: 2013 Submodel: V6

          Helpful (9)

        • 2/5

          Installation Time: Less than 1 Hour

          May 28, 2017

          Raspy after 2,500

          I had a 2013 with Roush ABs, CAI, and BBK Shorties and it sounded like perfect artificial 5.0. Simply, I was looking for more volume. The mid pipe itself is average. If you're looking for stupid loud with lots a rasp, this is it. I live in NYC and I can't even go pass 3,000 because it's just pure rasp. There is no "Agressive Muscle Car Rumble" pass 2,500. In my opinion, if you want to keep your throaty tone and moderately volumed V6 and is looking to increase both, don't buy this and look into some high-flow cats and/or resonators from your local shop to install onto the stock pipe. My guy charged me 90 and took into the stock pipe for 70. I hope he still has it because I'm planning to go back.


          Year: 2013 Submodel: V6

          Helpful (8)

        • 2/5

          Installation Time: Less than 1 Hour

          February 21, 2017

          Didn't fit

          I ordered it and I took it to a shop and they said that it's the wrong so yeah not satisfied.


          Year: 2013 Submodel: V6

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          July 20, 2015


          Prior to install, the sound on my 2012 V6 Premium Mustang with an Airaid Cold air intake, bama tune, and Borla ATAK Exhaust was decent. It had a loud high note when you laid on it but not very deep. With this install I was mainly looking for a deeper sound, and boy did I get it and more! This Mid-Pipe is crazy, my mustang sounds like an entirely different mustang! If you have a Borla ATAK Exhaust on, it is going to be at least twice as loud with this pipe when you get over 3-4k RPMs! It has a very loud bark, and sounds brutal when you lay on it. With my setup I do notice drone over 2k when im on the highway though. Its a manageable drone, but fair warning there is definitely some. My favorite part about the mid pipe is the deepness to the growl while it idles. Much lower note, and was exactly what I wanted in that regard! If your looking for a head turning part, that will really wake up your mustang this is definitely the one! I was told by others to get an X-Pipe but I was very glad I didn't because this midpipe does more than plenty!


          Year: 2012 Submodel: V6 Sudbury, MA

          Helpful (9)

        • 5/5

          Installation Time: Less than 1 Hour

          June 24, 2015

          More than i expected

          I absolutely love this its everything i was looking for and more. I qould highly recomend it. Wish i would have gotten it sooner


          Year: 2011 Submodel: V6 Cheyenne WY

          Helpful (6)

        • 5/5

          Installation Time: Afternoon

          June 28, 2014

          Mac off road pro chamber

          This mid pipe is quite the beast. It comes all shined up in the box. Weighs 23 pounds. Install took less than 4 hours with 2 people and about 1 1/2 foot of extensions. The box hangs down about 2 inches lower so watch out for speed bumps and driveways. Now for the tone. I have flowmaster 40 series welded in for my axlebacks, which are already raspy. If you putt putt around town under 2500 rpm it sounds the same as if you had cats. If you get on it, it'll wail. A lot of off road pipes have a harsh rasp at 3000 rpm. As does this one, yet, it's not as bad. It's deeper, has more bass, and more power than the H. I highly recommend this mid pipe because it still sounds like a stock setup until under heavy throttle. Very sleeper like. The bass on startup will shake your chest.


          Year: 2011 Submodel: V6

          Helpful (7)

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