These manifolds have both the inlet, and the outlet ports machined to match the factory gaskets. This allows for maximum flow, without compromising gasket performance. These manifolds have 25% Thicker walls than the warp-prone factory manifolds. The increase in thickness increases the rigidity of the manifolds and make them much more durable than the OE manifolds. These manifolds bolt directly to the factory up-pipe for an easy installation.

This Part Fits:

Year	Make	Model	Submodel
2011-2014	Ford	F-250 Super Duty	King Ranch
2011-2014	Ford	F-250 Super Duty	Lariat
2013-2014	Ford	F-250 Super Duty	Platinum
2011-2014	Ford	F-250 Super Duty	XL
2011-2014	Ford	F-250 Super Duty	XLT
2011-2014	Ford	F-350 Super Duty	King Ranch
2011-2014	Ford	F-350 Super Duty	Lariat
2013-2014	Ford	F-350 Super Duty	Platinum
2011-2014	Ford	F-350 Super Duty	XL
2011-2014	Ford	F-350 Super Duty	XLT