BD focused on solving one of the Ford 6.7L common failures, the exhaust
manifolds. Crafted with a heavy duty 0.275″ thick-walled Hi-Silicon
ductile casting, this makes these manifolds 75% thicker to combat cracking
due to high exhaust temperatures. Thermal durability has been improved with
longer exhaust studs and spacers plus thicker, more durable machined bolting
flanges. To maximize exhaust flow, computational fluid dynamics were used to
optimize flow and exhaust port sizes have been increased to match gaskets.
Fully EGR compatible, BD’s exhaust manifold set is the perfect replacement
for reliability, performance and peace of mind.

Performance high-silicon ductile cast iron
75% thicker walls retain heat and prevents warping
Machined thicker bolting flange
Includes the longest stud and spacer kit that fits across all 8-cylinders

Longer exhaust studs improve thermal durability
Thick spacers are black oxide coated
Designed using computation fluid dynamics
Exhaust ports are gasket matched to maximize exhaust flow
High temperature POR 15 black coated
Gaskets included: exhaust manifold, cross over tube, EGR port
Fully EGR compatible