Every Gibson Performance Header is Dyno-tuned and engineered to deliver more usable horsepower and torque at low and mid-range RPM highway speeds. Improves engines ability to breathe and cooler operating engine temperature. Designed as a direct replacement for the factory manifolds, using the stock crossover pipe. They are well suited for lowered and raised vehicles, street and off-road. 50 State Street legal. Meets EPA and CARB requirements. Will not affect the factory warranty. No welding required. Uses OEM style connections. 3/8 in. Heavy Duty Laser Cut Port Flanges- No Warping or Leaking. Premium Gaskets and Hardware included. Backed by a Lifetime Limited Warranty.
Certificate of Origin
Installation Instructions
Warranty


This Part Fits:

Year	Make	Model	Submodel
2003-2005	Ford	Excursion	Eddie Bauer
2000-2005	Ford	Excursion	Limited
2004-2005	Ford	Excursion	XLS
2000-2005	Ford	Excursion	XLT
2004	Ford	F-250 Super Duty	Harley-Davidson Edition
2004	Ford	F-250 Super Duty	King Ranch
1999-2004	Ford	F-250 Super Duty	Lariat
1999-2004	Ford	F-250 Super Duty	XL
1999-2004	Ford	F-250 Super Duty	XLT
2004	Ford	F-350 Super Duty	Harley-Davidson Edition
2003-2004	Ford	F-350 Super Duty	King Ranch
1999-2004	Ford	F-350 Super Duty	Lariat
1999-2004	Ford	F-350 Super Duty	XL
1999-2004	Ford	F-350 Super Duty	XLT