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Pypes Catted X-Box Mid Pipe (99-04 GT)

Market Price $637.99 You Save 9% ($58.00)
Our Price

$579.99

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  • Item 387281
  • MPN# XFM37

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Features & Details

  • Increases Power
  • Deep, Race Car Growl
  • X-Box Center Chamber Design
  • Full Tig-Welded and Mandrel-Bent
  • 2.5" 409 Stainless Steel Tubing
  • High Flow Ceramic Catalytic Converters
  • 49 State Street Legal
  • Fits 1999-2004 GT Mustangs
More Power. Increase power and torque in your 99-04 GT Mustang by replacing the power robbing factory catalytic converters with a brand new Pypes Catted X-Box Mid-Pipe. The Pypes Catted X-Box is designed to offer increased horsepower and torque, as well as an even deeper sound dimension, when compared to your traditional X-pipe upgrade.

Deep Race Car Growl. This free flowing Pypes X-Box for the New Edge GT will not only increase power as a result of its perforated X design within the center chamber and included ceramic catalytic converters, but it is certain to add a deep, race car growl to the sound of your exhaust.

Durable Stainless Steel Construction. Pypes utilizes high-quality 16 gauge 409 stainless steel mandrel bent 2.5" tubing for increased exhaust flow and features fully Tig-welded reinforcement plates for additional strength. The included High Flow Ceramic Catalytic Converters far outperform the restrictive stock cats to provide a significant increase in horsepower and torque.

Application. This Pypes Catted X-Box Mid-Pipe is designed as a direct installation for the 1999-2004 4.6L GT Mustangs, with either aftermarket short tube headers or the stock manifolds and a dual catback exhaust installed. Some cutting required for installation.

Note. This X-Box Mid-Pipe is 49 State Legal - not Legal in CA - and is not CARB Certified. Please check your local and state ordinances for installation and usage regulations.

Technical Note: 2004 Mustangs require the use of 24" O2 sensor plug-in extender wires.

Fitment: 1999 2000 2001 2002 2003 2004 Details

What's in the Box
  • (1) X-Box
  • (2) Down Pipes
  • (1) Down Pipe Sleeve
  • (2) Catalytic Converters
  • (4) Clamps
Installation Info
Tech Specs
Mid Pipe Specifications
Style Mid Pipe: Standard Length X-Box Type Headers Required: Shorty Headers or Stock Manifolds
Piping Material: 409 Stainless Steel Piping Size: 2.5"
Catalytic Converter: Yes - Ceramic Fitment: 1999-2004 GT Mustangs
Will it fit my Mustang?
  • GT - 99, 00, 01, 02, 03, 04

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Customer Reviews (1) Write a Review

Overall Rating 4.0

out of 5 stars

Installation Time:Afternoon

  • Loudness / Volume 4 4
  • Exhaust Note 5 5
  • Fit & Finish 5 5
  • Bang For Your Buck 4 4



  • 4/5

    Installation Time: Afternoon

    March 14, 2016

    overall happy

    bought one used but just as deep and throaty garenteed head turns and smiles for years to come

    hendy

    Year: 2001 Submodel: GT

    Helpful (1)

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