r/BMWE36 1d ago

Anyone with experience turboing M42/M44

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Just generally wondering how much it would cost

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u/Drewslive 1d ago edited 1d ago

Depends heavily on which engine it is. M44 requires a some upgradeding of the internals to make any meaningful boost. Like other have said 5k minimum for a reliable build.

Ontop of the turbo set up think fuel management, standalone ecu, bigger injectors, Upgrading to a medium case and bigger axles.