American Racing Headers Long Tube Headers 1-7/8" With 3" Catted X-Pipe Stainless Steel 4.6L 2V 1999-2004

American Racing Headers:
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  • Made In The U.S.A.
  • 1-7/8" Primaries
  • Collectors W/ Scavenger Spikes
  • 3/8" Thick Flanges

American Racing Headers Stainless Steel 1-7/8" Long Tube Headers with a 3" Catted X-Pipe for 1999, 2000, 2001, 2002, 2003 and 2004 Mustangs with a 4.6L 2V Engine.

American Racing Headers long tube headers and matching x-pipe will help you extract the maximum horsepower available from your 4.6L 2V engine. 1-7/8" primaries accommodate max effort applications. A full 3" x-pipe includes high flow catalytic converters for minimal exhaust restriction while keeping your car street legal. ARH long tube systems are engineered for a great fit and outstanding horsepower and torque gains throughout the RPM range.

- 304 stainless steel construction
- 1-7/8" primaries
- 3" x-pipe with high flow catalytic converters
- 3/8" thick flanges with TIG welded and hand ported inlets
- Slip fit merge collectors with scavenger spikes
- Bolts directly to factory cat-back
- All necessary hardware included

ARH long tube headers offer a no hassle installation. There is no need to dent primary tubes to clear the steering shaft or starter. The headers clear everything perfectly with room to spare. ARH machines 3/8" thick flanges that resist warping. Flanges are TIG welded to the primary tubes then ported to create the smoothest flowing exhaust possible. The 100% leak free one-piece long tube design keeps exhaust parts to a minimum and creates a straight forward installation. ARH long tube headers extend towards the outside of the car so removal of the transmission does not require removing of the headers.

A 3" x-pipe connects to the long tube headers with a slip fit design and it bolts directly to your factory cat-back. Ultra high-flow 200 cell metallic substrate catalytic converters provide the ultimate exhaust flow while still passing emissions laws. The 3" x-pipe will bump up the decibels of your Mustang when mashing the gas.

Installing long tube headers requires either removal of the k-member or removal of the engine. No one wants to remove headers a second time to deal with loose bolts or an exhaust leak. The high quality ARH headers and x-pipe provide perfect fitment and sealing so your install is done right the first time. Along with great fitment comes fantastic power gains and an aggressive exhaust tone. Made in the USA!

*Available with or without EGR fittings.

Note: This item is not CARB (California Air Resource Board) exempt and is not legal for sale or use in the state of California.

Installation Difficulty


Advanced skill is required for this installation.

Installation Videos

Vehicle Fitment

This product will fit the following Mustang years:

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