Quote:
Originally Posted by SeanWRT
BMW cast turbine section and manifold in one piece, most of others don't. That means if you cast turbine section for bmw platform, you need to make manifold as well.
Normally stage 3 turbo does not include manifold. The closest platform is A45 AMG which use the same BW turbo from factory but manifold and turbo isn't in one piece. Their stage 3 upgrade (top mount) do not need a new manifold.
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I'm not sure we're talking about the same part. The manifold I am referring to is the exhaust manifold, aka turbo manifold, often referred to here as the "turbofold". It sounds like you are referring to the turbo housing?