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MAC Off-Road Pro Chamber Mid Pipe (11-14 V6 w/ Long Tube Headers)

Market Price $564.95 You Save 12% ($65.00)
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  • Item 100662

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    Features & Details

    • Improves Exhaust Flow for More Power
    • Unique Pro Chamber Crossover Design
    • For Off-Road, Track Use
    • 2.5" Mandrel-Bent Stainless Steel Tubing
    • Fits 2011-2014 V6 Mustangs w/ MAC Long Tube Headers
    Increase Exhaust Flow. Get rid of those power robbing factory catalytic converters and uncork your 2011-2014 V6 Mustangs hidden power with a MAC Performance Shorty Off-road Mid-Pipe. Featuring the exclusive Pro Chamber style crossover and free-flowing mandrel-bent tubing, this high performance shorty Mid Pipe in combination with MAC Performance Long Tube Headers 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 shorty 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 Shorty Mid-pipe is designed as a direct bolt-on for the 2011-2014 3.7L V6 Mustangs, with MAC Performance Long Tube Headers installed. Intended for off-road, track use only, does not include catalytic converters.

    Fitment: 2011 2012 2013 2014 Details

    MPN# 21205

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Mid-Pipe
    • (2) Down Pipes
    • (2) Clamps
    Installation Info
    Tech Specs
    Mid Pipe Specifications
    Style Mid Pipe: Shorty Type Headers Required: MAC Long Tube
    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?

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    Questions & Answers (10)

    5 Top Rated Questions

    Will this work with BBK long tubes?

    • yes they will check out my youtube channel for a sound clip FLΞΞT

    Helpful (3)

    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 (1)

    Will this mid pipe pass emissions?

    • This midpipe will not pass most emissions inspections since it would delete the catalytic converters.

    Helpful (0)

    will this fit with the Magnaflow 4.5 in Cat-Back exhaust?

    • Yes, this mid pipe is compatible with the Magnaflow 4.5 in. cat-back exhaust for the V6.

    Helpful (0)

    Hi can add the Pypes catalytic to this h-pipe for it to be street legal ? Will I need welding or can I just bolt on the cats and this h-pipe ?

    • The Pypes catalytic converters will work with this H-pipe however you will need to make modifications which include welding them in.

    Helpful (0)
    Post Your Question
    5 More Questions
    If I get shorty headers and this, could I reuse my cats bolt-on fashion? Or would I need to get custom work done? 1 answer
    does this part fit without any custom work? 1 answer
    Well this work with Borla Long Tube Headers? 1 answer
    Performance gains? What kinds of horsepower and torque gains can I expect from this with MAC long tube headers? 1 answer
    Fitment Will this fit my 2012 v6 with bbk longtubes 1 answer

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    Customer Reviews (4) Write a Review

    Overall Rating 4.5

    out of 5 stars

    Installation Time:Weekend

    Installation Cost:0-$100

    • Loudness / Volume 4.25 4.3
    • Exhaust Note 4 4
    • Fit & Finish 4.75 4.8
    • Bang For Your Buck 4.25 4.3

    • 3/5

      Installation Time: Afternoon

      April 29, 2018

      Only kept it for a week.

      Initially I thought that these would give me the power and sound that I was looking for. After driving with it for a week I removed it and went back to my catted x-pipe. There was a rattle with these that I couldn’t stop and the rasp was unbearable. I am sure that the tone might have improved with a set of cats or resonators but the rattle was enough to convince me that the quality of the product was severely lacking. I suspect that the baffles in the chamber are loose and the rattle is coming from them.


      Year: 2013 Submodel: V6

      Helpful (8)

    • 5/5

      Installation Time: Afternoon

      May 16, 2016

      MAC Off-Road Pro Chamber Mid-Pipe

      Had a small problem with the two front pipes that bolt to the headers, but over all love them.


      Year: 2011 Submodel: V6

      Helpful (7)

    • 5/5

      Installation Time: Shop Install

      Installation Cost: 0-$100

      December 10, 2015

      Great product

      Very well made I could not be happier with the performance and sound IMO this is a must have for any serious muscle with a V6


      Year: 2014 Submodel: V6 Orlando FL

      Helpful (7)

    • 5/5

      Installation Time: Shop Install

      November 13, 2015

      Great buy check it out

      Great buy for any sixers out there. I bought this with a prochamber to eliminate the rasp that i'd get and it work it sounds MEAN!!!!! If you're wondering as to what it sounds like scribe to my youtube channel I'll be doing a full review of it on this date 11/16 or 17/2015 depending on what time the tunes I've order come in. My channel name: FLΞΞT see you there!!!


      Year: 2013 Submodel: V6

      Helpful (13)

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