1999-2004 Mustang GT 4.6L ARH 1-3/4" Long Tube Headers w/ Off-road X-Pipe

This American Racing Headers package includes high performance ARH 1-3/4" Long Tube Headers and an ARH Off-road X-Pipe. This package is a direct bolt-on system, which means no cutting or drilling required. The X-pipe connects to your factory cat-back exhaust.

The long tube headers feature 304 stainless steel construction, thick 3/8" flanges, merge-style collectors with scavenging spikes, and 1-3/4" diameter primary tubes for the 1999-2004 Mustang GT and GT500.

These headers have outstanding fit and provide an excellent performance gain over the factory exhaust. Gains of 15-20 horsepower are common on naturally aspirated applications and 25 to 40 horsepower on supercharged applications over the factory exhaust.

	Mustang Header Specs:
Header Type:	Long Tube
Material:	304 Stainless Steel
Finish:	Stainless Steel
Flange Thickness:	3/8"
Primary Diameter:	1-3/4"
Collector Diameter:	2-1/2"
Mid-pipe Required:	Included
Auto Trans:	No
Manual Trans:	Yes
Gaskets / Hardware:	Included
O2 Sensor Extensions:	Included
Fitment:	1999-2004 Mustang GT 4.6L
	Mustang Mid-pipe Specs:
Type:	Off-road X-Pipe
Length:	Short (for use with long tube headers)
Catalytic Converters:	No
Material:	Stainless Steel
Inlet Diameter:	2-1/2" (OEM)
Outlet Diameter:	2-1/2" (OEM)
Cat-back Options:	Click Here for Cat-back options from Stage 3 Motorsports
Fitment:	1999-2004 Mustang GT 4.6L

Custom tuning: This kit requires custom tuning. We recommend taking advantage of Stage 3's custom tuning package that comes with SCT's X-Calibrator 3 handheld tuner and qualifies you for our Loyalty Tunes program.

Stage 3 Tuning: Stage 3 Motorsports features the easiest way to get custom tuning for your Mustang performance parts. Fill out our simple tune sheet and submit it online after you've placed your order. If you need help, check out our tuning "How To" page or contact us directly.