American Racing Headers MT4-99134300LSNC 99-04 Mustang 4V Longtubes with 1-3/4" Primaries, 3" Merge Collectors, 3" X-Pipe (Off-Road Race Only)

1999-2004 Mustang 4 Valve owners now have something to cheer about. American Racing Headers now has long tube header systems for you. Made with the same dedication to quality as all ARH systems, our 4 Valve header systems will deliver the goods. Here's some features for you to check out:

- Manufactured entirely using U.S. made 304 S/S.
- 100% leak free one piece long tube design
- Your choice of 1-3/4" primaries with 2-1/2" or 3" collectors
- Merge collectors with scavenger spikes standard
- 3/8" thick flanges with tig welded and hand ported inlets
- Direct bolt-in catted or off-road X-pipe
- Ultra high flow 200 cell metallic substrate cats
- Excellent fit with a relatively easy install
- Positioned wide in engine compartment to allow easy trans removal
- Outstanding HP and Torque gains throughout the RPM range
- Second to none customer service