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MAC Stainless Off-Road Pro Chamber Mid Pipe (99-04 GT, Cobra w/ Long Tube Headers)

Market Price $603.37 You Save 12% ($69.42)
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$533.95 (each)

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  • Item 401087
  • MPN# PC4200

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Ship to: Ashburn - 20149
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    Features & Details

    • Designed for Off-Road Use
    • Enhances Power with Augmented Exhaust Flow
    • Cutting-Edge, Exclusive Pro Chamber Crossover Design
    • 2.5 inch Mandrel-Bent Stainless Steel Tubing
    • Aluminum-Silicon Alloy Coating Ensures Rust-Resistance
    • Straight Forward Installation
    • 1 Year Limited Warranty
    • Not Legal for Street Use
    • Fits All 1999-2004 Ford Mustang GT Models and Cobra Models with Long Tube Headers
    Enhanced Power. The MAC Off-Road Pro Chamber Mid Pipe is designed for off-road use in your Ford Mustang GT and Cobra. This pipe will effectively enhance the power of your vehicle with the augmented exhaust flow. The pipe has a cutting-edge, patented Pro Chamber Crossover design to improve air flow.

    Stainless Steel. The manufacturer uses heavy-duty stainless steel to make the mid pipe. They use an aluminum-silicone alloy coating to ensure superior rust-resistance. The 2.5 inch mandrel-bent tubing design increases air flow and power.

    Straight Forward Installation. This mid-pipe has a straight forward installation that can be completed in approximately two hours with basic hand tools and moderate mechanical expertise.

    1 Year Limited Warranty. This product comes with a 1 year limited warranty which provides coverage for any craftsmanship defects. The warranty period starts from the invoice date. Check the warranty information for more details on limitations that apply.

    Application. The MAC Off-Road Pro Chamber Mid Pipe is designed to fit all 1999-2004 Ford Mustang GT models and Cobra models with long tube headers. This MAC PC4200 is designed for off-road use only and is not street legal.

    Fitment: 1999 2000 2001 2002 2003 2004 Details

    CA Residents: WARNING: Cancer and Reproductive Harm -

    What's in the Box
    • (1) Mid-Pipe
    • (2) Down Pipes
    • (8) Threaded Studs
    • (8) Nuts 
    • (1) Installation Instructions
    Installation Info
    Will it fit my Mustang?

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    Questions & Answers (3)

    3 Top Rated Questions

    Will this fit an '03 Mach 1 with Mac Longtube headers? It states only GT/Cobras. Is there a major difference between the GT/Cobra and the Mach 1 exhaust wise?

    Will it fit bbk longtube headers without modification?

    • We would only be able to guarantee direct bolt on fitment of MAC Off-Road Pro Chamber Mid Pipe with a set of Mac Long Tube Headers as mixing brands may require modification or fit together poorly.

    Helpful (0)

    What is the difference between this prochamber and the 40046 prochamber?

    • The MAC Off-road Pro Chamber Mid Pipe, item # 40046, ( is very similar to the MAC Off-Road Pro Chamber Mid Pipe, item # 401087. They both feature 2.5" piping, the same Chamber, fitment, and design. Though, # 401087 features a 1 year warranty.

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