I am looking to swap out the factory turbo for an S300 turbo in the 3rd Gen location.

I plan on buying a new manifold, either T3 or T4 depending on the turbo and the Fleece S300/S400 oil line kit.

Are there any other small parts that I would need?

I am looking at Stainless Diesel 5-blade S366 or the non-VGT fleece cheetah from the 04.5-07 5.9's.

I've also been looking at the bd iron horn kits; I'm not a fan of the included manifolds.

Im mainly concerned with attaching the exhaust to a new turbo since I'm not sure what the factory flange is considered.

I know the stainless turbo has either the HX40 or JD Marmon mounts for the exhaust, but I'm not sure which would mount better.

Looking for any advice you've got!