1999-04 Ford Mustang American Racing Headers 1 3/4" Long Tube System w/ Cats Cobra-Mach 1 - New Edge by American Racing Headers

Mustang American Racing Headers 1 3/4" Long Tube System w/ Cats (99-04)

Details   |  Description
  • 1999-2004 FORD MUSTANG 4V 1-3/
1999-2004 FORD MUSTANG 4V 1-3/

Install a set of quality headers while gaining peak power with American Racing Headers' 1999-04 Mustang Cobra & Mach 1 header kit!

Item #ARH-10403

Everyday Low Price: $1,614.00

Ships from supplier in 10-15 business days


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  • Increased Performance
  • High Quality Fit & Finish
  • Made In USA


  • 1 3/4" Primaries
  • 3" Catalytic X-Pipe
  • 304 Stainless Steel

What's in the Box

  • (1) ARH Longtube Header Pair
  • (1) Catted X-Pipe
  • Installation Hardware

Product Description

American Racing Longtube Header Kit
Increase horsepower and torque in your 1999-2004 Mustang Cobra or Mach 1 with a high quality set of longtubes from American Racing Headers! ARH set the standard for quality in the exhaust world with their top notch products. This longtube header kit features 1 3/4" primaries to provide maximum flow over the factory manifolds. The headers flow into a high flow catalytic x-pipe to replace the restrictive factory cats. The fit and finish of these American Racing Headers is second to none!

ARH Quality
American Racing Headers proudly makes all of their products in the USA. This 1999-2004 Mustang header and mid-pipe kit is constructed entirely with U.S. made 304 stainless steel tubing. These headers start off with 3/8" thick flanges with tig-welded and hand ported inlets. The 1 3/4" primary tubes are all one piece design for 100% leak-free performance. These primary tubes flow into the included high flow 3" catalytic X-pipe. This combination will maximize flow, horsepower, and torque!

Emissions Note
This longtube header and x-pipe kit includes a high flow catalytic x-pipe. The catalytic converters in this kit are 49 state legal and will NOT pass California emissions testing.

Installation Note
ARH recommends reusing factory gaskets or replacing with Ford OEM set.

-Fits 1999-2004 Mustang Cobra
-Fits 2003-2004 Mustang Mach 1

American Racing Headers Limited Warranty - Click Here

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Vehicle Applications

Ford Mustang - 1999 (99) - 2000 (00) - 2001 (01) - 2002 (02) - 2003 (03) - 2004 (04)

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